{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9652221","patent":{"patent_number":"US-9652221","title":"Runtime patching of an operating system (OS) without stopping execution","assignee":null,"inventors":[],"filing_date":"2015-09-28T00:00:00.000Z","publication_date":"2017-05-16T00:00:00.000Z","cpc_codes":["G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F","G06F"],"num_claims":17,"abstract":"Techniques for runtime patching of an OS without stopping execution of the OS are presented. When a patch function is needed, it is loaded into the OS code. Threads of the OS that are in kernel mode have a flag set and a jump is inserted at a location of an old function. When the old function is accessed, the jump uses a trampoline to check the flag, if the flag is set, processing returns to the old function; otherwise processing jumps to a given location of the patch. Flags are unset when exiting or entering the kernel mode."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Runtime patching of an operating system (OS) without stopping execution","description":"Techniques for runtime patching of an OS without stopping execution of the OS are presented. When a patch function is needed, it is loaded into the OS code. Threads of the OS that are in kernel mode h","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9652221","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-9652221","citation_suggestion":"Patentable. \"Runtime patching of an operating system (OS) without stopping execution\" (US-9652221). https://patentable.app/patents/US-9652221","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9652221","json":"https://patentable.app/api/llm-context/US-9652221","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:33:22.899Z"}