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Root > Materials Chemistry > Reference > Patent Databases
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*Patent documents  (56)

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US Patent Database
Hrsg.: United States Patent and Trademark Office

MicroPatent
Provider of internet-delivered patent and trademark information.

Canadian Patent Database
Hrsg.: Canadian Intellectual Property Office (CIPO)

Derwent
Provides patents from 40 patent offices worldwide.
Hrsg.: Derwent Information

DEPATISnet - German Patent and Trade Mark Office
Patent publications from around the world.
Hrsg.: Deutsches Patent- und Markenamt


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