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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™

新興の科学分野

Nobel Prize winners

Discover how Nobel-winning science unfolds—from breakthrough ideas to global recognition. CAS Insights reveals the context, challenges, and impact behind these discoveries.
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創薬

Theranostics: How nuclear medicine is changing precision oncology

Nuclear medicine's theranostics approach enables "see it, treat it" cancer therapy using the same agents for diagnosis and treatment. Investment tripled to $14.86B in 2024 as these precision treatments move to early-stage care.
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バイオテクノロジー

From batteries to biosensors: Conductive polymers make the jump to commercial applications

Revolutionary materials that conduct electricity like metals while bending like plastics are transforming everything from batteries to brain implants. Discover how conductive polymers went from Nobel Prize discovery to cutting-edge biomedical breakthroughs.
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