PTAB 4 Years In: Don’t Estop Me Now

Managing IP is part of Legal Benchmarking Limited, 1-2 Paris Gardens, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Cookies Settings

PTAB 4 Years In: Don’t Estop Me Now

September 09 2016
PTAB icon 165

The Federal Circuit this year has provided some guidance on how district courts should treat estoppel from Patent Trial and Appeal Board trials. This has made defendants less terrified about estoppel but many questions remain. Practitioners are also concerned about how confidential material is treated in district courts and the Board

Unlock this content.

The content you are trying to view is exclusive to our subscribers.

To unlock this content:

Take a Free Trial or Login

Topics

United StatesNewsPatentsNorth AmericaJurisdictions
more from across site and SHARED ros bottom lb

More from across our site

Managing IP Awards
Copy of LS EMEA Awards 2026.png
Life Sciences Awards EMEA 2026: shortlist revealed
The LMG Life Sciences Awards is thrilled to present the shortlist for the 2024 EMEA Awards
Ahmed Hadi, April 02 2026
Patents
The UK Supreme Court
Weekly take: UKIPO should pay litigation costs like everyone else
Having agreed to a cost cap in the landmark Emotional Perception AI case, the government should do the right thing and pay at least the bare minimum
Ed Conlon, April 02 2026
Trademarks
Ruth Huw.png
DLA Piper London chief to join Eversheds
Ruth Hoy will join the firm's IP practice alongside Huw Cookson, who will also become a partner
April 01 2026
Patents
Balance scales weighing glowing digital brain against human brain in courtroom setting representing artificial intelligence versus human intelligence in legal decisions.
Hoyng Rokh Monegier launches AI-powered UPC platform
IP boutique firm says its platform will help navigate ‘scattered’ decisions by bringing case law, commentary and research under one umbrella
Max Walters, April 01 2026
Patents
Mewburn.png
Mewburn Ellis continues litigation and prosecution push with partnership additions
The latest round of promotions has contributed to a 21% rise in partner headcount in the past two years, with business leaders eyeing litigation and the UPC
March 31 2026
Trademarks
Artboard 1 copy 6@4x.png
The IP Lounge: Recognising 30 years of the EUTM
João Negrão, EUIPO executive director, is joined by a seasoned official to reflect on three decades of stories
Max Walters, March 31 2026
Patents
Delhi High Court building
Canadian telecom firm nets second major patent win in India
Sim & San, which secured the $16m victory for their client, previously led Communications Components Antenna to a $26m damages win in 2024
Sukanya Sarkar, March 30 2026
Trademarks
Ruth Hoy image.jpg
DLA Piper’s London chief to exit firm ahead of crunch vote
IP litigator Ruth Hoy has led the London office since 2022
March 30 2026
Patents
London- The Supreme Court on Parliament Square, Westminster. The
Exclusive: UK govt refuses to pay costs in landmark AI case
Emotional Perception AI is seeking more than £200,000 after the UK Supreme Court backed its appeal
Ed Conlon, March 30 2026
Trademarks
Magnifying glass showing forbidden artificial intelligence symbol on yellow background
How ‘AI free’ logos could reshape consumer trust and IP strategy
Lawyers at Pinsent Masons discuss why the advent of ‘AI-free’ might be a crucial moment for brands seeking to protect their identity
Gill Dennis, March 30 2026
Gift this article