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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™

Emerging Science

Webinar: AI for science—Real-world applications of cutting-edge research powered by artificial intelligence

Explore some of the most successful recent applications of AI in research with experts from 3M, the Moffitt Cancer Center and Research Institute, and CAS.
|Webinar
Drug Discovery

How water could replace some organic solvents and make chemical reactions greener

Since many catalysts and reagents show sensitivity to moisture, water was often excluded as a potential solvent. Now, it appears that many organic transformations can be achieved either in water or on water without using harmful chemicals or volatile organic compounds as solvents.
|Article
Biotechnology

CAS Insights Report: Fungal infections—New challenges in treatment

Fungal infections represent a growing threat to global health. But while publications and clinical trials have declined recently, renewed interest from researchers and the pharmaceutical industry may lead to new breakthroughs.
|Insights Report