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Patent Reissues

About

Utilizing USPTO proceedings to correct an error or challenge patent validity

Patent reissue allows a patentee to correct a wide variety of errors in an issued patent if the error renders the patent partially or wholly inoperative or invalid. In the last five years, Finnegan has handled more than 100 patent reissue proceedings. Filing a reissue has associated risks and limitations, especially when attempting to broaden patent claims. Finnegan attorneys have extensive experience in mapping out a course of action in view of those inherent risks and limitations. We regularly counsel patent owners through the thicket of reissue challenges to achieve a cost-effective strategy that meets the goals for not only the patent at issue, but also the client’s portfolio as a whole.

Contacts

Adriana L. Burgy
Partner
Washington, DC
+1 202 408 4345
Email
Aaron J. Capron
Partner
Palo Alto, CA
+1 650 849 6680
Email
Kathleen A. Daley
Partner
Washington, DC
+1 202 408 4098
Email
Li Feng, Ph.D.
Partner
Washington, DC
+1 202 408 4382
Email
Anthony M. Gutowski
Partner
Reston, VA
+1 571 203 2774
Email
Jeffrey M. Jacobstein
Partner
Boston, MA
+1 617 646 1664
Email
Karthik Kumar, Ph.D.
Partner
Washington, DC
+1 202 408 4433
Email
Timothy P. McAnulty
Partner
Washington, DC
+1 202 408 4348
Email
John M. Mulcahy
Partner
Reston, VA
+1 571 203 2751
Email
Amanda K. Murphy, Ph.D.
Partner
London
+44 (0)20 7864 2814
Email
Eric P. Raciti
Partner
Boston, MA
+1 617 646 1675
Email
Mark D. Sweet
Partner
Washington, DC
+1 202 408 4162
Email
Anthony C. Tridico, Ph.D.
Partner
Washington, DC
+1 202 408 4173
Email
Naoki Yoshida
Partner
Washington, DC
+1 202 408 6057
Email
Adriana L. Burgy
Partner
Washington, DC
+1 202 408 4345
Email
Aaron J. Capron
Partner
Palo Alto, CA
+1 650 849 6680
Email
Kathleen A. Daley
Partner
Washington, DC
+1 202 408 4098
Email
Li Feng, Ph.D.
Partner
Washington, DC
+1 202 408 4382
Email
Anthony M. Gutowski
Partner
Reston, VA
+1 571 203 2774
Email
Jeffrey M. Jacobstein
Partner
Boston, MA
+1 617 646 1664
Email
Karthik Kumar, Ph.D.
Partner
Washington, DC
+1 202 408 4433
Email
Timothy P. McAnulty
Partner
Washington, DC
+1 202 408 4348
Email
John M. Mulcahy
Partner
Reston, VA
+1 571 203 2751
Email
Amanda K. Murphy, Ph.D.
Partner
London
+44 (0)20 7864 2814
Email
Eric P. Raciti
Partner
Boston, MA
+1 617 646 1675
Email
Mark D. Sweet
Partner
Washington, DC
+1 202 408 4162
Email
Anthony C. Tridico, Ph.D.
Partner
Washington, DC
+1 202 408 4173
Email
Naoki Yoshida
Partner
Washington, DC
+1 202 408 6057
Email

Everyone in this practice

Experience

Reissue proceedings at the USPTO leads to rejection reversal (Ex Parte Belliveau)
Finnegan represented patent applicant High End Systems Inc. in reissue proceedings before the U.S. Patent and Trademark Office Board of Patent Appeals and Interferences.  Finnegan was successful in obtaining a complete reversal of the Examiner’s rejection of claims to LED technology.

Insights

Articles

The Interplay of Patent Term Extension (PTE) and Reissue: Merck v. Aurobindo and Its Implications, Part I

April 7, 2026

Articles

The Interplay of Patent Term Extension (PTE) and Reissue: Merck v. Aurobindo and Its Implications, Part II

April 7, 2026

At the PTAB Blog

10X Genomics Inc. v. Bio-Rad Labs., Inc.: PTAB Reiterates Patent Owner’s Obligation to Notify Board of Reexamination and Reissue

May 25, 2021

Federal Circuit IP Blog

Written Description Must Clearly and Unequivocally Disclose Broadened Claims in Reissue Patents

June 28, 2019

Prosecution First Blog

Reissue Basics

July 06, 2017

Webinar

Strategic Use of Patent Reissue: Determining Whether and When to Pursue a Reissue Application

January 14, 2016

Webinar

More

News

Award/Ranking

Finnegan Named Law Firm of the Year for Patent Law in the 2026 Best Law Firms Rankings

November 6, 2025

Award/Ranking

IAM Recognizes Six Finnegan Partners in its 2026 Global Leaders Guide

October 22, 2025

Award/Ranking

Seven Finnegan Attorneys Recognized in the 2025 IAM Global Leaders Guide

October 23, 2024

Award/Ranking

Women in Business Law Americas Awards 2024: Three Finnegan Attorneys Shortlisted

April 7, 2024

Award/Ranking

Seven Finnegan Partners Named IAM Global Leaders for 2024

November 14, 2023

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