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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

New technologies can increase critical metals supplies

Critical metals play crucial roles in modern industries, but are uneven in abundance and geographic distribution. Fortunately, new research and methods may help meet market needs.
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Biotechnology

Could xenotransplantation solve organ transplant shortages?

With the advent of genetic editing technology, researchers are increasingly able to address immuno-compatibility issues, getting closer to making organs and tissues available for transplant from animal donors to human recipients.
|Article
Biotechnology

Spatial transcriptomics could unlock new treatments for Alzheimer’s, cancer, and more

Spatial transcriptomics provides unprecedented insights into the organization, function, and interactions of cells within complex tissues, allowing a deeper understanding of cellular composition and activity.
|Article