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

Patents
3 years birthday party balloons design
Three years of the UPC: how healthcare has influenced case law
Lawyers at Carpmaels & Ransford explain how the healthcare sector has not simply participated in the UPC’s early years, but actively shaped it
John Brunner, June 01 2026
Patents
New Office shots 8.jpg
Breaking: Munck Wilson Mandala opens Fort Worth office
The firm has hired former in-house counsel Quintin Cassady to lead the launch of the new office
Sanjana Mishra, June 01 2026
Patents
Merger.jpg
Winston Taylor merger closes to form £1.23bn transatlantic firm
The combined firm has strong IP credentials across the US, Middle East, UK and Europe, despite Taylor Wessing’s German and French practices not joining
Sukanya Sarkar, June 01 2026
Patents
Priya Nagpal.png
The ‘feel’ of a boutique: litigator eyes cross-practice focus at Wiggin
Priya Nagpal, who this month became the firm’s eighth IP partner, says its cross-practice expertise in areas closely linked to IP was a key draw
June 01 2026
Patents
harm headshot2.jpeg
Exclusive: AI patent platform hires NLO veteran in ‘industry first’
Harm van der Heijden is to join Ankar as head of patent innovation after 17 years in private practice
Max Walters, June 01 2026
Trademarks
MA Headshot.png
‘Wearing multiple hats’: the key to launching a firm
Alabama attorney Miya Aladebumoye has launched a new firm built on ‘big law’ experience and a personal touch approach
Sanjana Mishra, May 29 2026
Patents
CNN.jpg
This week on MIP: $59m trade secrets ruling reversed | CNN sues Perplexity AI
A UKIPO campaign aimed at combating fakes in the pre-loved fashion market and registration of the first Portuguese craft and industrial geographical indication were also among the top talking points
Sukanya Sarkar, May 29 2026
Patents
Artboard 1 copy 6@4x.png
The IP Lounge: What to know ahead of IP STARS rankings changes
Chris Adams, Managing IP’s research lead, joins us to explain what practitioners need to know ahead of our first rankings release of 2026
Max Walters, May 29 2026
Patents
Dallas at dusk
‘Y’all Street’ growth as Winston & Strawn expands in Texas
Another IP litigator joins Winston & Strawn in Dallas as firm seeks to keep pace with ‘rapid’ growth of Texas market
Sanjana Mishra, May 28 2026
Patents
Australasia.jpg
IP services group IPH hires ex-PWC leader as new CEO
Anthony O'Malley will replace Andrew Blattman at IPH, which owns several large IP firms across Australia, Asia and Canada
Sukanya Sarkar, May 28 2026
Gift this article