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

4D printing: Can time-responsive design transform materials science?

How can we print in 4D? By adding time as a dimension, researchers are creating sensors and devices that respond to stimuli like heat and moisture. These cutting-edge materials have the potential to play a crucial role in biomedicine, aerospace, and more.
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Biotechnology

Precision oncology: Reshaping the business of cancer care

Explore how precision oncology innovations like theranostics, biomarkers, spatial transcriptomics, and AI-driven analytics are reshaping cancer research and treatment strategies.
|Article
Drug Discovery

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.
|Article