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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™.

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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™

新兴科学

Wide bandgap semiconductors: Transforming EVs, UV, and wireless communications

For high-performance technologies in power electronics, energy storage, and optoelectronics, semiconductors need to offer performance beyond standard silicon. Wide bandgap semiconductors can handle the high‑voltage, high‑temperature, and high‑frequency conditions of these emerging applications.
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Biotechnology

Hantavirus: How climate change may be increasing disease risk

Hantavirus, a rodent-borne RNA virus with case fatality rates up to 40%, is reshaping zoonotic disease risk amid environmental change and global mobility.
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材料化学

Quantum computing: Methods and materials driving new capabilities

Quantum computing includes many methods and types of qubits, and certain materials are key for developing these computing capabilities.
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