PTAB rankings: Top petitioners, patent owners and law firms in first nine months

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 rankings: Top petitioners, patent owners and law firms in first nine months

November 02 2018
PTAB icon 165

Apple was the top petitioner, Qualcomm was the most-challenged patent owner and Fish & Richardson was the law firm involved in the most PTAB disputes filed in the first nine months of the year, according to data revealed by Managing IP

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

Rankings Analysis
IPSTARS APAC smc.png
On the up and up: IP STARS Asia-Pacific rankings revealed
IP STARS, Managing IP’s accreditation title, reveals this year’s first rankings, showing how firms in Asia-Pacific are performing across a range of practice areas
Sukanya Sarkar, June 04 2026
Patents
Budapest, Hungary - April 18, 2021: Cybex Priam Black stroller or pram in the park. Infant carriage seat. Close up image with soft focus.
UPC update: Court of Appeal offers Kodak clarity | Stroller showdown
A dispute over buggies, a decision on the UPC’s jurisdiction, and the formal launch of the Patent Mediation and Arbitration Centre were among the top developments
June 04 2026
Patents
Reception.jpg
Exclusive: Hoffmann Eitle toasts new London office with HGF hire
Sofie McPherson says she is excited to work at a firm that offers an integrated approach between attorneys and litigators
Max Walters, June 03 2026
Copyright
AI Audio Intelligence Concept with Neon Headphones and Glowing Sound Waves
Music licensing and AI: a tale of two superpowers
Personality rights are among several measures the government must take to maximise the potential of the music licensing market, say lawyers
June 02 2026
Patents
Pascal Faure - Crédit photo Maxime Montabord (3).jpg
‘Don’t be influenced by trends’: France’s IP office head on the importance of rationality
Pascal Faure, director general of INPI, explains why keeping a cool head is key, and discusses plans to leverage IP assets to secure funding
June 02 2026
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
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
Gift this article