{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9677810","patent":{"patent_number":"US-9677810","title":"Method for improving quality and functionality of filter paper suitable for collecting biological samples","assignee":null,"inventors":[],"filing_date":"2012-02-02T00:00:00.000Z","publication_date":"2017-06-13T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N"],"num_claims":7,"abstract":"A method for diminishing variation between and/or within individual sheets of filter papers which are suitable for collecting samples of biological material, e.g. blood, is described. The method includes at least one of the following: subjecting the sheets of filter paper to gaseous substance containing at least 30 grams water per cubic meter and/or wetting the sheets of filter paper with water and subsequently drying the sheets of filter paper. According to tests, the above-described treatment significantly reduces the undesirable variation between results analyzed from sheets of filter paper and impregnated with same biological material for test purposes."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for improving quality and functionality of filter paper suitable for collecting biological samples","description":"A method for diminishing variation between and/or within individual sheets of filter papers which are suitable for collecting samples of biological material, e.g. blood, is described. The method inclu","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9677810","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-9677810","citation_suggestion":"Patentable. \"Method for improving quality and functionality of filter paper suitable for collecting biological samples\" (US-9677810). https://patentable.app/patents/US-9677810","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9677810","json":"https://patentable.app/api/llm-context/US-9677810","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:33:29.410Z"}