CAS Registry Services℠

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.

Contact us
Hexagon shaped overlay
Glowing blue technical blueprint of a circular mechanical part with measurements and circuit-like background.

Features

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

Covalent Organic Frameworks (COFs) are driving breakthroughs in renewable energy and biomedicine

With their porosity, stability, and tunable properties, COFs can be used like Nobel Prize-winning MOFs in catalysis, biosensors, and other applications while being more sustainable.
|記事
エマージング・サイエンス

Scientific breakthroughs: 2026 emerging trends to watch

What are the biggest trends happening in science in 2026? We explore innovations in sustainability, drug discovery, and materials science that will have the greatest impact.
|記事
持続可能性

CAS Insightsウェビナーで探るグリーンケミストリーの新たなトレンド

AIを活用したソリューションからメカノケミストリーまで、このCAS Insightsウェビナーのまとめでは、注目すべき最新のグリーンケミストリーのトレンドを探ります。
|記事