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

View All Essentials

Quick Stat

560

Total Number of petitions for Covered Business Method review filed as of September 20, 2018

Learn More

8421

Total Number of petitions for Inter Partes review filed as of September 20, 2018

Learn More

Featured News

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.

Learn More

Hot Topics

Substantial New Questions of Patentability

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

Learn More

Reexamination News & Events

Subscribe

View All News & Events

Sep 20, 2018

PTO Litigation Report – September 20, 2018

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

Learn More

Sep 19, 2018

PTO Litigation Report – September 19, 2018

Listed below are all new filings before the 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

Sep 17, 2018

PTO Litigation Report – September 17, 2018

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

Learn More

Sep 14, 2018

PTO Litigation Report – September 14, 2018

Listed below are all new filings before the 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

Sep 13, 2018

PTO Litigation Report – September 13, 2018

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

Learn More

Sep 12, 2018

PTO Litigation Report – September 12, 2018

Listed below are all new filings before the 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

Sep 11, 2018

PTO Litigation Report – September 11, 2018

Listed below are all new filings before the 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

Sep 10, 2018

PTO Litigation Report – September 10, 2018

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

Learn More

Sep 7, 2018

PTO Litigation Report – September 7, 2018

Listed below are all new filings before the 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

Sep 6, 2018

PTO Litigation Report – September 6, 2018

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

Learn More