Once filed, the requester cannot “unfile” the reexamination. Many pitfalls await the unwary. Learn More

How to institute a reexamination, common pitfalls, ex parte versus inter partes. Learn More

Most recent USPTO reexamination statistics regarding volume and timing from 2007-2010. Learn More

Concise definitions and discussions of important reexamination concepts and terminology. Learn More

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Hot Topics

Litigation Stays

Judge Selna in the Central District of California has authored a number of nuanced stay decisions.

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Executive Interviews

The Reexamination Center Executive Interview: Dr. Nancy J. Linck

The Reexamination Center interviews Nancy J. Linck, Ph.D. on a variety of post-grant challenge options at the PTO, including inter partes and ex partes reexamination and the new options introduced within the America Invents Act signed into law in September 2011.

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Quick Stat

92%

Percentage of ex parte requests that are granted substantive reexamination by the CRU.

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Reexamination News & Events

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May 15, 2012

Daily Reexamination Report – May 15, 2012

Below is the newest reexamination request filed with the United States Patent and Trademark Office as of May 15, 2012:  one ex parte reexamination request and four inter partes reexamination requests.

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May 14, 2012

Daily Reexamination Report – May 14, 2012

Below is the newest reexamination request filed with the United States Patent and Trademark Office as of May 14, 2012: three ex parte reexamination requests.

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May 11, 2012

Daily Reexamination Report – May 11, 2012

Below is the newest reexamination request filed with the United States Patent and Trademark Office as of May 11, 2012: one ex parte reexamination request and three inter partes reexamination requests.

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