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

551

Total Number of petitions for Covered Business Method review filed as of April 26, 2018

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7750

Total Number of petitions for Inter Partes review filed as of April 26, 2018

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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

Protective Orders

The interplay between the duty of disclosure in a reexamination proceeding and a protective order in a concurrent litigation is a critical issue.

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Apr 26, 2018

PTO Litigation Report – April 26, 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.

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Apr 25, 2018

PTO Litigation Report – April 25, 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.

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Apr 24, 2018

PTO Litigation Report – April 24, 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

Apr 23, 2018

PTO Litigation Report – April 23, 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

Apr 20, 2018

PTO Litigation Report – April 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).  Also listed are any newly-posted requests for ex parte reexamination at the USPTO.

Learn More

Apr 19, 2018

PTO Litigation Report – April 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).  Since the last report, no new requests for ex parte reexamination at the USPTO have been posted.

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Apr 18, 2018

PTO Litigation Report – April 18, 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.

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Apr 17, 2018

PTO Litigation Report – April 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.

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Apr 16, 2018

PTO Litigation Report – April 16, 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.

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Apr 13, 2018

PTO Litigation Report – April 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