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

438

Total Number of petitions for Covered Business Method patent review filed as of April 29, 2016

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4401

Total number of petitions for Inter Partes Review filed as of April 29, 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

Substantial New Questions of Patentability

Fundamental to every reexamination request is the substantial new question of patentability or the SNQ.

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Apr 29, 2016

PTO Litigation Center Report – April 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

Apr 28, 2016

PTO Litigation Center Report – April 28, 2016

Listed below are all new filings before PTAB of requests 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

Apr 27, 2016

PTO Litigation Center Report – April 27, 2016

Since the last report, there have been no new filings of petitions for inter partesreview or covered business method review.  Listed below are all newly-posted requests for ex parte reexamination.

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Apr 26, 2016

PTO Litigation Center Report – April 26, 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

Apr 25, 2016

PTO Litigation Center Report – April 25, 2016

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 forex parte reexamination at the USPTO have been posted.

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Apr 22, 2016

PTO Litigation Center Report – April 22, 2016

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 forex parte reexamination at the USPTO have been posted.

Learn More

Apr 21, 2016

PTO Litigation Center Report – April 21, 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

Apr 20, 2016

PTO Litigation Center Report – April 20, 2016

Listed below are all new filings before PTAB of requests 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

Apr 19, 2016

PTO Litigation Center Report – April 19, 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

Apr 18, 2016

PTO Litigation Center Report – April 18, 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