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

523

Total Number of petitions for Covered Business Method review filed as of July 27, 2017

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6675

Total Number of petitions for Inter Partes review filed as of July 27, 2017

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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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Jul 27, 2017

PTO Litigation Report – July 27, 2017

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.

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Jul 26, 2017

PTO Litigation Report – July 26, 2017

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

Jul 25, 2017

PTO Litigation Report – July 25, 2017

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

Jul 24, 2017

PTO Litigation Report – July 24, 2017

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

Learn More

Jul 21, 2017

PTO Litigation Report – July 21, 2017

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

Jul 20, 2017

PTO Litigation Report – July 20, 2017

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

Jul 18, 2017

PTO Litigation Report – July 18, 2017

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

Jul 17, 2017

PTO Litigation Report – July 17, 2017

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

Jul 14, 2017

PTO Litigation Report – July 14, 2017

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

Jul 13, 2017

PTO Litigation Report – July 13, 2017

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