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Prior Art

Learn about what it means to be prior art, including the different categories of prior art under the 1952 Act and the AIA.


A variety of categories of prior art 35 U.S.C. 102 can potentially anticipate a claim. The 1952 Patent Act and the AIA generally outline the same three main categories of prior art, including patents and printed publications, public uses, and prior art sales activity.

I.              Prior Patents or Printed Publications

Prior art documents include patents and printed publications. Under both the 1952 Patent Act and the AIA,...