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CAS Patents

Our patent collection is augmented with English titles and abstracts and detailed indexing by CAS scientists, making complex aspects of patent documents, including chemical substances, sequences, Markush structures, assignees, and classification codes, searchable and accessible.

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Patents published by 109 issuing authorities covering more than 40,000 unique IPC codes in areas including chemistry, pharmaceuticals, consumer goods, processes, materials, engineering, agriculture, and more.

English language titles and abstracts for patents published in 50 languages translated and enhanced by CAS scientists.

Key invention details including substances, reactions, Markush representations, and more indexed by scientists and connected to other relevant data within the CAS Content Collection™.

Consolidated patent family summaries and convenient connections to global full-text patent documents.

Claims text, legal status information, cited references, and examiner citations included for select authorities.

Updated daily, with patent applications from nine major patent issuing authorities available within two days of publication.

Latest from CAS Insights™

エマージング・サイエンス

Reading the Circuits: ACS/CAS microelectronics webinar recap

Summary of our recent webinar, featuring experts from CAS, the National Institute of Standards and Technology (NIST), and the University of Manchester, discussing the research landscape of microelectronics research and breakthroughs.
|記事
エマージング・サイエンス

Fossil fuels to biofuels: How biomass can drive sustainability

Biomass is currently just a fraction of our energy sources, but with more sustainable feedstocks and conversion processes, biomass-based chemicals and fuels could become common replacements for fossil fuel-based materials.
|Insights Report
創薬

AI in drug discovery: Moving from potential to practical

CAS hosted Life Sciences Summits across three regions in 2025, exploring practical AI integration in drug discovery. Learn about data governance, implementation barriers, and modality-specific challenges.
|記事