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

469

Total Number of petitions for Covered Business Method patent review filed as of June 30, 2016

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4692

Total number of petitions for Inter Partes Review filed as of June 30, 2016

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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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Jun 30, 2016

PTO Litigation Center Report – June 30, 2016

Listed below are all new filings before the PTAB of petitions 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

Jun 29, 2016

PTO Litigation Center Report – June 29, 2016

Listed below are all new filings before the PTAB of petitions 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

Jun 28, 2016

PTO Litigation Center Report – June 28, 2016

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

Learn More

Jun 27, 2016

PTO Litigation Center Report – June 27, 2016

Listed below are all new filings before the PTAB of petitions 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

Jun 24, 2016

PTO Litigation Center Report – June 24, 2016

Listed below are all new filings before the PTAB of petitions 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

Jun 23, 2016

PTO Litigation Center Report – June 23, 2016

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

Learn More

Jun 22, 2016

PTO Litigation Center Report – June 22, 2016

Listed below are all new filings before the PTAB of petitions 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

Jun 21, 2016

PTO Litigation Center Report – June 21, 2016

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

Learn More

Jun 20, 2016

PTO Litigation Center Report – June 20, 2016

Listed below are all new filings before the PTAB of petitions 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

Jun 17, 2016

PTO Litigation Center Report – June 17, 2016

Listed below are all new filings before the PTAB of petitions 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