{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9853455","patent":{"patent_number":"US-9853455","title":"Battery for fault handling in bidirectional power conversion systems","assignee":null,"inventors":[],"filing_date":"2015-12-31T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H02M","H02J","H02J","H02J","H02J","H02J","H02J"],"num_claims":20,"abstract":"A power distribution system includes a bidirectional power converter, a battery, and a controller. The bidirectional power converter is operable to (i) convert AC power received at AC terminals to DC power at DC terminals and (ii) convert DC power received at the DC terminals to AC power at the AC terminals. The bidirectional power converter is disposed within a converter stack formed by a plurality of power converters having DC terminals that are coupled to each other in series. The battery is arranged to be selectively couplable to the DC terminals of the bidirectional power converter. The controller is configured to (i) determine that the DC voltage across the DC terminals of the bidirectional power converter is below a threshold voltage and (ii) couple the battery to the DC terminals of the bidirectional power converter based on the determination that the DC voltage is below the threshold voltage."},"analysis":{"summary":"The patent titled \"Battery for Fault Handling in Bidirectional Power Conversion Systems\" (US-9853455) introduces a critical innovation for enhancing the reliability and stability of modern power distribution systems. At its core, this invention addresses the vulnerability of series-connected bidirectional power converters to localized voltage sags or faults, which can otherwise lead to widespread system instability and costly downtime.\n\nThe core innovation lies in a power distribution system comprising a bidirectional power converter, a battery, and a controller. The bidirectional converter, capable of both AC-to-DC and DC-to-AC power conversion, is part of a 'converter stack' where multiple such units are connected in series via their DC terminals. The problem it solves is the immediate and effective mitigation of DC voltage drops across individual converters within this stack. Without such a mechanism, a single converter's instability can propagate, compromising the entire system's operation.\n\nThe key technical approach involves the controller continuously monitoring the DC voltage across the terminals of the bidirectional converter. Upon detecting that this voltage has fallen below a pre-defined threshold, indicating a potential fault or instability, the controller intelligently and rapidly couples a dedicated battery to those DC terminals. This instantaneous injection of power stabilizes the voltage, preventing further degradation and ensuring the continuous, uninterrupted operation of the converter and, by extension, the entire system.\n\nThe business value and applications are significant across various sectors. This technology offers enhanced resilience for critical infrastructure such as data centers, telecommunications, and industrial processes where continuous power is essential. It also improves the reliability and grid integration of renewable energy sources (e.g., solar, wind) and electric vehicle charging stations, especially those supporting vehicle-to-grid (V2G) functionalities. By minimizing downtime and preventing cascading failures, this innovation translates directly into reduced operational costs, improved service quality, and increased energy efficiency.\n\nThe market opportunity for this patent is substantial within the growing segments of smart grids, microgrids, distributed energy resources, and high-power industrial applications. As power systems become more complex and interconnected, the demand for robust, self-healing fault handling mechanisms will only intensify, positioning this innovation as a vital enabler for future energy infrastructure.","layman_explanation":"### What Problem Does This Solve?\n\nImagine a large, interconnected power system, like the one that supplies electricity to a city or a massive data center. This system uses many specialized devices called 'bidirectional power converters' to manage electricity flow. These converters are crucial because they can change alternating current (AC) to direct current (DC) and vice versa, which is essential for integrating renewable energy, charging electric vehicles, or balancing the grid. Often, these converters are linked together in a long chain, or 'stack,' to handle high power demands.\n\nThe big problem arises when one of these converters in the chain experiences a momentary dip in its internal voltage. This could be due to a sudden change in demand, a minor glitch, or even a small external disturbance. In a series-connected system, a voltage dip in just one unit can create a domino effect, destabilizing the entire chain and potentially leading to a complete system shutdown – a costly and disruptive power outage. Existing solutions often involve complex, slow, or expensive workarounds that don't offer instantaneous, localized protection.\n\n### How Does It Work?\n\nThe patent \"Battery for Fault Handling in Bidirectional Power Conversion Systems\" provides an elegant solution. Think of each critical bidirectional converter in the chain as having its own dedicated, 'on-call' emergency battery. This battery isn't always connected; it's waiting in standby.\n\nThere's a smart 'controller' constantly monitoring the voltage of each converter. It's like a vigilant watchdog. If this controller detects that a converter's voltage drops below a safe, pre-set level (indicating a problem), it immediately and automatically connects that specific converter's emergency battery. This battery then instantly injects power, stabilizing the voltage for that particular converter. Because the problem is addressed at its source, it prevents the voltage dip from affecting other converters in the chain and keeps the entire system running smoothly, without interruption.\n\nThis isn't just about preventing total blackouts; it's about making complex power systems incredibly resilient, like a self-healing network. The 'what' is simple: immediate, localized power support when a converter gets into trouble, preventing wider system failure. The 'how' involves smart sensing and rapid switching, all orchestrated by the controller.\n\n### Why Does This Matter?\n\nThis innovation has profound implications across various industries. For businesses reliant on continuous power, like data centers, hospitals, or manufacturing plants, it means significantly reduced downtime and millions saved in potential losses. For the renewable energy sector, it enhances the reliability of solar and wind farms by ensuring they can consistently feed power into the grid, even if individual components face issues. In the burgeoning electric vehicle market, it can improve the stability and efficiency of high-power charging stations, especially those capable of vehicle-to-grid (V2G) power exchange.\n\nUltimately, this technology offers a substantial competitive advantage to companies that adopt it, allowing them to provide more robust, reliable, and efficient power solutions. It translates into better return on investment (ROI) by safeguarding critical operations and maximizing energy asset utilization. It helps build a more resilient energy infrastructure, which is crucial for economic stability and technological advancement.\n\n### What's Next?\n\nThis patent lays the groundwork for a new generation of 'self-healing' power systems. We can expect to see this technology integrated into new power converter designs, particularly for smart grids, microgrids, and large-scale energy storage projects. Its adoption will likely accelerate as the demand for highly reliable and distributed energy solutions grows. Investors should recognize this as a key enabler for future energy infrastructure, offering opportunities in manufacturing, system integration, and advanced energy management services.","technical_analysis":"The patent \"Battery for Fault Handling in Bidirectional Power Conversion Systems\" (US-9853455) delineates a sophisticated approach to enhancing the reliability and fault tolerance of power distribution systems, particularly those employing series-connected bidirectional power converters. This technical analysis delves into the architectural specifics, operational principles, and implications for power electronics engineers.\n\n**Technical Architecture Overview:**\n\nThe disclosed system comprises three primary components: a bidirectional power converter, a battery, and a controller. The bidirectional power converter is a central element, designed for dual functionality: converting AC power to DC power and vice-versa. Crucially, this converter is positioned within a 'converter stack,' an arrangement where multiple power converters have their DC terminals coupled in series. This series configuration is common in applications requiring high DC link voltages or modular power scaling, such as modular multilevel converters (MMCs) or cascaded H-bridge inverters.\n\nThe battery is not permanently integrated but is *selectively couplable* to the DC terminals of the bidirectional power converter. This selective coupling is a key differentiator, allowing the battery to act as a dynamic energy buffer when needed, rather than a constantly active component that could introduce efficiency losses or control complexities under normal operation.\n\n**Implementation Details and Operational Principles:**\n\nThe controller is the intelligent core of this system. Its primary function is continuous monitoring of the DC voltage across the terminals of the bidirectional power converter. This monitoring requires precise voltage sensing capabilities, likely employing high-speed analog-to-digital converters (ADCs) to capture transient voltage excursions.\n\nUpon detection, the controller executes a two-step process: (i) it determines if the measured DC voltage falls below a pre-configured threshold voltage, and (ii) based on this determination, it initiates the coupling of the battery to the DC terminals. The threshold voltage is a critical parameter, carefully selected to indicate an impending fault or an unacceptable voltage sag that could destabilize the converter or the entire stack.\n\nThe coupling mechanism would typically involve fast-acting power electronic switches (e.g., IGBTs, MOSFETs, or contactors for slower response if acceptable) controlled by the controller. The battery itself would be a DC energy storage device, likely a lithium-ion battery or supercapacitor bank, chosen for its high power density and fast discharge/charge characteristics. The bidirectional nature of the converter allows the battery to be charged from the AC side during normal operation or from other DC sources, ensuring its readiness for fault handling.\n\n**Algorithm Specifics and Control Implications:**\n\nThe control algorithm for the controller would involve: \n1.  **Voltage Sensing:** Continuous, high-frequency sampling of the DC voltage at the converter terminals.\n2.  **Threshold Comparison:** Real-time comparison of the sensed voltage against the predefined threshold.\n3.  **Decision Logic:** If `V_DC < V_threshold`, trigger battery coupling.\n4.  **Switching Control:** Generating appropriate gate signals for the power switches to connect the battery. This might involve soft-switching techniques to minimize transients during coupling.\n5.  **Decoupling Logic:** After the fault condition clears or voltage stabilizes, the controller would execute a decoupling sequence to disconnect the battery, potentially returning it to a charging or standby state.\n\nThe controller itself would likely be implemented on a high-performance digital signal processor (DSP) or field-programmable gate array (FPGA) to ensure the necessary speed and deterministic response for fault handling in power electronics.\n\n**Integration Patterns and Performance Characteristics:**\n\nThis technology integrates seamlessly into existing bidirectional converter designs that are part of series stacks. The addition of the battery and controller module can be modular, enhancing the resilience of individual converter units without requiring a complete overhaul of the stack architecture. Key performance characteristics include:\n\n*   **Response Time:** Crucially fast, in the order of microseconds to milliseconds, to effectively mitigate transient voltage sags.\n*   **Voltage Stabilization:** Ability to rapidly restore the DC voltage to acceptable levels.\n*   **Fault Ride-Through Capability:** Enhancing the converter's capacity to maintain operation during grid disturbances or internal faults.\n*   **Efficiency:** The selective coupling minimizes standby losses associated with the battery when not actively engaged.\n\n**Code-Level Implications:**\n\nSoftware development for the controller would involve embedded programming (C/C++), real-time operating systems (RTOS), and potentially hardware description languages (HDLs) for FPGA implementations. The control loops would require robust proportional-integral-derivative (PID) controllers or more advanced model predictive control (MPC) algorithms for precise voltage regulation during battery engagement. Fault detection logic would need to be highly reliable, distinguishing actual sags from measurement noise.\n\nIn essence, this patent offers a robust, intelligent, and localized solution to a pervasive problem in high-power, series-connected bidirectional conversion systems. It paves the way for more resilient and autonomous power electronics architectures critical for future energy grids.","business_analysis":"The patent \"Battery for Fault Handling in Bidirectional Power Conversion Systems\" (US-9853455) presents a compelling business opportunity by addressing a critical vulnerability in modern power infrastructure: the reliability of bidirectional power conversion systems, particularly in series-connected configurations. This innovation has significant implications for market opportunity, competitive advantage, revenue potential, and strategic positioning across various industries.\n\n**Market Opportunity Size:**\n\nThe market for bidirectional power converters is experiencing robust growth, driven by the proliferation of renewable energy integration (solar, wind), electric vehicle (EV) charging infrastructure (especially vehicle-to-grid, V2G), grid-scale energy storage, microgrids, and high-power industrial applications (e.g., data centers, manufacturing). Each of these sectors relies heavily on the stable and continuous operation of power converters arranged in complex stacks. The global power electronics market alone is projected to reach hundreds of billions of dollars by the end of the decade, with bidirectional converters and advanced control systems forming a rapidly expanding segment. This patent targets a crucial pain point within this massive and growing market: system reliability and fault tolerance. The potential market for components, modules, and integrated solutions based on this technology is therefore substantial, encompassing upgrades to existing infrastructure and integration into new deployments.\n\n**Competitive Advantages:**\n\nThis patent offers several distinct competitive advantages:\n\n1.  **Superior Reliability and Uptime:** The ability to proactively and instantly mitigate localized DC voltage sags prevents cascading failures and system-wide shutdowns. This translates directly into higher uptime and operational continuity, a paramount concern for critical applications.\n2.  **Reduced Operational Costs:** By minimizing downtime, the technology reduces lost revenue, avoids costly emergency repairs, and streamlines maintenance, offering a lower total cost of ownership compared to less resilient systems.\n3.  **Enhanced Grid Integration:** For renewable energy and EV charging, improved fault ride-through capabilities enhance compliance with stringent grid codes and allow for more seamless integration into the utility grid.\n4.  **Modularity and Scalability:** The localized fault handling mechanism allows for modular implementation, making it easier to scale power systems without introducing new points of failure or requiring complex, centralized redundancy.\n5.  **Differentiation:** Companies adopting or licensing this technology can differentiate their products by offering 'self-healing' or 'fault-tolerant' power conversion solutions, a significant value proposition in a competitive market.\n\n**Revenue Potential and Business Models:**\n\nRevenue generation from this patent could take multiple forms:\n\n*   **Licensing:** Licensing the technology to existing power electronics manufacturers, grid infrastructure providers, and EV charging solution developers.\n*   **Product Development:** Integrating the patented fault handling module into proprietary bidirectional converter products, selling enhanced converter units or complete system solutions.\n*   **System Integration:** Offering consulting and integration services for implementing this fault handling capability into large-scale projects like microgrids, utility substations, or industrial power systems.\n*   **Ancillary Services:** Beyond fault handling, the integrated battery could potentially be leveraged for other grid services, opening additional revenue streams.\n\n**Strategic Positioning:**\n\nStrategically, this patent positions its implementers at the forefront of power system resilience. It enables companies to:\n\n*   **Lead in Grid Modernization:** Become key players in the transition to smarter, more resilient grids that can handle the intermittency of renewables and the demands of electrified transport.\n*   **Target High-Value Segments:** Penetrate critical infrastructure markets where reliability is a non-negotiable requirement and where the cost of downtime is exceptionally high.\n*   **Innovate in Energy Storage Integration:** Advance the state-of-the-art in how energy storage is integrated into power electronics, moving beyond bulk storage to localized, intelligent deployment.\n\n**ROI Projections:**\n\nWhile specific ROI depends on implementation and market penetration, the value proposition is clear: reduced operational expenditures due to fewer outages, increased revenue from consistent power delivery, and enhanced brand reputation for reliability. For a data center, preventing even a single major outage can save millions. For a renewable energy plant, maximizing uptime directly impacts energy sales. These tangible benefits suggest a strong ROI for adopters of this patented technology, making it an attractive investment for companies seeking to future-proof their power systems and gain a competitive edge in the evolving energy landscape.","faqs":[{"answer":"The Battery for Fault Handling in Bidirectional Power Conversion Systems is a patent (US-9853455) that describes an innovative power distribution system designed to enhance the reliability and stability of bidirectional power converters. Essentially, it's a smart system that prevents power disruptions by quickly addressing voltage issues in individual converter units.\n\nThis invention focuses on situations where multiple power converters are connected in a series, a common setup in modern grids, renewable energy systems, and high-power industrial applications. The core idea is to equip these converters with a mechanism that can instantly stabilize their internal voltage if it drops below a safe operating threshold.\n\nIt combines a bidirectional power converter, a selectively couplable battery, and an intelligent controller. The controller acts as the 'brain,' constantly monitoring the converter's voltage and deploying the battery only when needed. This targeted intervention prevents localized faults from escalating into widespread system failures, ensuring continuous power flow.","question":"What is Battery for Fault Handling in Bidirectional Power Conversion Systems?"},{"answer":"The Battery for Fault Handling in Bidirectional Power Conversion Systems works through a three-part mechanism: continuous monitoring, intelligent detection, and instantaneous power injection.\n\nFirst, a dedicated controller constantly monitors the DC voltage across the terminals of a bidirectional power converter. This converter is part of a larger 'stack' where multiple converters are connected in series. The controller is programmed with a specific 'threshold voltage' which represents the minimum healthy operating voltage.\n\nSecond, if the controller detects that the DC voltage has fallen below this threshold, it interprets this as a potential fault or instability. This detection triggers the third step: the controller immediately commands a dedicated battery to connect (couple) to the DC terminals of that specific converter. This battery instantly injects power, stabilizing the voltage and bringing it back above the threshold. This rapid, localized response prevents the voltage sag from spreading to other converters in the series stack, thereby maintaining overall system stability and uninterrupted operation. Once the fault is resolved, the battery can be decoupled.","question":"How does Battery for Fault Handling in Bidirectional Power Conversion Systems work?"},{"answer":"The Battery for Fault Handling in Bidirectional Power Conversion Systems patent primarily solves the critical problem of cascading failures and instability in series-connected bidirectional power conversion systems. In these complex setups, a voltage dip or fault in a single converter unit can propagate rapidly, leading to widespread system outages, downtime, and significant economic losses.\n\nTraditional fault handling methods are often too slow, too broad, or too expensive to effectively address these localized, transient voltage disturbances. The invention provides a precise, instantaneous, and localized solution, preventing small issues from becoming catastrophic failures. It ensures that even if one part of a converter stack experiences a problem, the entire system can continue to operate reliably, which is vital for critical infrastructure, renewable energy integration, and modern industrial processes.","question":"What problem does Battery for Fault Handling in Bidirectional Power Conversion Systems solve?"},{"answer":"The patent for Battery for Fault Handling in Bidirectional Power Conversion Systems (US-9853455) lists the inventors as [Inventors Name, if provided, otherwise state 'The inventors are not provided in the supplied patent data.']. The assignee, if known, would be the entity to which the patent rights were transferred, typically a company or research institution. In this case, the assignee information was not provided in the patent data, so we cannot specify the company or organization that holds the rights to this invention.\n\nThis innovation reflects a collaborative effort in the field of power electronics to enhance the reliability and fault tolerance of complex power distribution systems. The development of such technologies is often a result of extensive research and development within specialized engineering teams.","question":"Who invented Battery for Fault Handling in Bidirectional Power Conversion Systems?"},{"answer":"The Battery for Fault Handling in Bidirectional Power Conversion Systems offers several significant benefits, making it a crucial advancement in power electronics. Firstly, it dramatically enhances **system reliability and resilience**. By providing instantaneous, localized voltage stabilization, it prevents minor faults from escalating into major system outages, ensuring continuous operation for critical applications.\n\nSecondly, it leads to **reduced downtime and operational costs**. Preventing cascading failures means less lost revenue, lower maintenance expenses associated with system restarts, and overall improved operational efficiency. Thirdly, it supports **optimized energy flow and grid stability**, particularly for renewable energy sources and EV charging infrastructure, by enabling converters to ride through faults more effectively and comply with stringent grid codes. Lastly, its **modular and scalable design** allows for flexible integration into various power system architectures, offering a cost-effective solution for upgrading existing systems or designing new, highly resilient ones. These benefits combine to deliver a superior total cost of ownership and a more dependable energy future.","question":"What are the key benefits of Battery for Fault Handling in Bidirectional Power Conversion Systems?"},{"answer":"The Battery for Fault Handling in Bidirectional Power Conversion Systems distinguishes itself from prior art primarily through its intelligent, localized, and selectively couplable energy storage approach. Unlike traditional methods that often rely on oversized components, centralized protection schemes, or passive damping, this innovation provides active power injection precisely where and when it's needed.\n\nPrior solutions often involve system-wide shutdowns, which are slow and costly, or globally connected energy storage that is less efficient and may not provide targeted support. This patent's unique controller-driven mechanism, which only connects the battery when a specific converter's DC voltage drops below a threshold, ensures a fast, precise, and efficient response. This prevents the fault from propagating through the series-connected converter stack, offering a level of fault isolation and resilience that is superior to previous generalized or passive mitigation techniques. It's about targeted intervention rather than broad-stroke protection.","question":"How is Battery for Fault Handling in Bidirectional Power Conversion Systems different from prior art?"},{"answer":"The Battery for Fault Handling in Bidirectional Power Conversion Systems is poised to impact a wide array of industries that rely on robust and continuous power conversion. Key sectors include the **Renewable Energy** industry, where it can significantly improve the reliability and grid integration of solar and wind farms by ensuring continuous power injection even during converter faults.\n\n**Electric Vehicle (EV) Charging Infrastructure** will also benefit, particularly for high-power DC fast chargers and Vehicle-to-Grid (V2G) applications, enhancing stability and efficiency. **Data Centers, Telecommunications, and Industrial Manufacturing** will find immense value in its ability to prevent costly downtime and maintain operational continuity for critical processes. Furthermore, the **Smart Grid and Microgrid** sectors will leverage this technology to build more resilient, self-healing power systems capable of operating autonomously during disturbances. Any industry utilizing series-connected bidirectional power converters for high-reliability applications stands to gain from this innovation.","question":"What industries will Battery for Fault Handling in Bidirectional Power Conversion Systems impact?"},{"answer":"The patent for Battery for Fault Handling in Bidirectional Power Conversion Systems (US-9853455) was filed on **December 31, 2015**. It was subsequently published on **December 26, 2017**.\n\nThe filing date marks the official submission of the invention to the patent office, establishing its priority date. The publication date signifies when the patent application became publicly accessible, allowing others to review its details. This timeline highlights the period of examination and review by patent authorities before its public disclosure, underscoring the rigor involved in securing intellectual property rights for such innovative power electronics solutions.","question":"When was Battery for Fault Handling in Bidirectional Power Conversion Systems filed/granted?"},{"answer":"The commercial applications of Battery for Fault Handling in Bidirectional Power Conversion Systems are extensive and span critical sectors of modern infrastructure. One primary application is in **Utility-Scale Renewable Energy Projects**, where it enhances the reliability of grid-tied solar and wind inverters, maximizing energy yield and ensuring grid code compliance. In **Electric Vehicle Charging Networks**, especially for high-power DC fast charging and V2G systems, it provides critical stability, improving user experience and grid interaction.\n\n**Data Centers and Telecommunication Facilities** can deploy this technology to virtually eliminate power outages caused by converter faults, ensuring uninterrupted service and protecting invaluable data. **Industrial Power Systems**, such as those in manufacturing or processing plants, can achieve higher operational uptime and reduce maintenance costs. Furthermore, it's highly applicable in **Microgrids and Distributed Energy Resources (DERs)**, enabling more robust and autonomous local power systems that can withstand internal and external disturbances. The technology can be integrated into new product designs for power electronics manufacturers or offered as an upgrade solution for existing converter installations, creating diverse revenue streams.","question":"What are the commercial applications of Battery for Fault Handling in Bidirectional Power Conversion Systems?"},{"answer":"Future developments for the Battery for Fault Handling in Bidirectional Power Conversion Systems are likely to focus on further enhancing its intelligence, efficiency, and integration capabilities. We can expect advancements in **adaptive control algorithms** that can dynamically adjust the voltage threshold based on real-time operating conditions, grid stability, or even predictive analytics of potential faults.\n\nIntegration with **machine learning and AI** could lead to more sophisticated fault prediction and diagnosis, allowing for proactive battery coupling or even preventative maintenance. Miniaturization and increased energy density of the selectively couplable batteries will likely improve, making the modules more compact and efficient. Furthermore, the concept could be extended to address a wider range of fault types or integrate with broader **grid-level energy management systems**, allowing the local batteries to potentially contribute to ancillary services beyond just fault handling when not actively engaged. Ultimately, this technology is a foundational step towards highly autonomous, self-healing power grids, with continuous innovation driving its capabilities.","question":"What are the future developments expected for Battery for Fault Handling in Bidirectional Power Conversion Systems?"}],"topics":["Battery for Fault Handling in Bidirectional Power Conversion Systems","US-9853455","bidirectional power conversion","fault handling","grid stability","technical","unpacking","battery"],"tech_cluster":null},"seo":{"title":"Battery for Fault Handling in Bidirectional Power Conversion Systems - US-9853455","description":"Discover the Battery for Fault Handling in Bidirectional Power Conversion Systems patent (US-9853455). Learn how this innovation ensures grid stability and uninterrupted power in converter stacks.","keywords":["Battery for Fault Handling in Bidirectional Power Conversion Systems","US-9853455","bidirectional power conversion","fault handling","grid stability","power electronics","energy storage","converter stack","DC voltage regulation","power system reliability","patent innovation","microgrids","renewable energy integration"]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9853455","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9853455","citation_suggestion":"Patentable. \"Battery for fault handling in bidirectional power conversion systems\" (US-9853455). https://patentable.app/patents/US-9853455","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9853455","json":"https://patentable.app/api/llm-context/US-9853455","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:15:37.175Z"}