The America Invents Act has ushered in a variety of new ways to challenge patents at the U.S. Patent and Trademark Office. Learn More

Learn about inter partes review (IPR), covered business method review (CBM), post-grant review (PGR), reexaminations, derivation proceedings, and interferences. Learn More

Most recent patent office litigation statistics regarding volume and timing from the USPTO from 2007-2013. Learn More

Concise definitions and discussions of important patent office litigation concepts and terminology. Learn More

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Quick Stat

255

Total Number of requests for Covered Business Method patent review filed as of November 21, 2014

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2090

Total number of requests for Inter Partes Review filed as of November 21, 2014

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Patent Office Litigation - Order Your Copy Today

A key publication for patent owners, litigators, and IP professionals operating in today’s global economy, Patent Office Litigation is a two-volume set focused on the new contested proceedings under the America Invents Act. This book examines how the proceedings interact with other aspects of patent procurement and enforcement, and delivers practical analysis and advice. To order your copy of Patent Office Litigation today, click here.

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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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Reexamination News & Events

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Nov 21, 2014

PTO Litigation Center Report – November 21, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Also listed are any newly-posted requests for ex parte reexamination at the USPTO.

Learn More

Nov 20, 2014

PTO Litigation Center Report – November 20, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Also listed are any newly-posted requests for ex parte reexamination at the USPTO.

Learn More

Nov 19, 2014

PTO Litigation Center Report – November 19, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Also listed are any newly-posted requests for ex parte reexamination at the USPTO.

Learn More

Nov 18, 2014

PTO Litigation Center Report – November 18, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Also listed are any newly-posted requests for ex parte reexamination at the USPTO.

Learn More

Nov 17, 2014

PTO Litigation Center Report – November 17, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Also listed are any newly-posted requests for ex parte reexamination at the USPTO.

Learn More

Nov 14, 2014

PTO Litigation Center Report – November 14, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Since the last report, no new requests for ex parte reexamination at the USPTO have been posted.

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Nov 13, 2014

PTO Litigation Center Report – November 13, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Since the last report, no new requests for ex parte reexamination at the USPTO have been posted.

Learn More

Nov 12, 2014

PTO Litigation Center Report – November 12, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Since the last report, no new requests for ex parte reexamination at the USPTO have been posted.

Learn More

Nov 11, 2014

PTO Litigation Center Report – November 11, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Also listed are any newly-posted requests for ex parte reexamination at the USPTO.

Learn More

Nov 10, 2014

PTO Litigation Center Report – November 10, 2014

Listed below are all new filings before PTAB of requests for inter partes review (IPR) and covered business methods review (CBM).  Also listed are any newly-posted requests for ex parte reexamination at the USPTO.

Learn More