April busy for IPR filing, including 10 petitions from Kyle Bass

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

April busy for IPR filing, including 10 petitions from Kyle Bass

May 12 2015
ptab-web-icon-55.jpg

USPTO data reveals 148 PTAB petitions were filed in April. The month was notable for an escalation of Kyle Bass and Erich Spangenberg’s targeting of pharma companies, with 14 IPR petitions now filed by their Coalition for Affordable Drugs

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

NewsUnited StatesPatentsNorth AmericaJurisdictions
more from across site and SHARED ros bottom lb

More from across our site

Patents
Kieckhefer, Kieran.jpg
Latham’s new hire signals continued demand for IP litigators
Latham & Watkins bolstered its IP litigation bench in California with the addition of Kieran Kieckhefer, as partner demand for trial-ready expertise shows no sign of slowing
Sanjana Mishra, May 21 2026
Patents
AdobeStock_2018168741.jpeg
Sharing the ‘secret sauce’: Sterne Kessler launches Section 101 AI tool
With the launch of a new patent eligibility AI tool, Sterne Kessler is leading a growing movement of law firms taking AI development into their own hands
Sanjana Mishra, May 21 2026
Patents
Panorama München Innenstadt im Abendlicht
Weekly take: There’s a UPC world beyond Germany
UPC cases are (very) gradually becoming more distributed across other local divisions outside Germany, which can only be good news for the pan-European forum
May 21 2026
Patents
Dusseldorf.jpg
UPC update: PI claim loses bite | ADR open for business
Clarification concerning jurisdictional reach and latest stats released by the court were also among the top talking points in recent weeks
Max Walters, May 21 2026
Trademarks
High Court of Australia.jpg
Lawyers welcome Australian clarity on ‘honest’ defence to TM infringement
Although unanimous decision by the top court clarifies several aspects of the honest concurrent use defence, practitioners say ambiguities remain
Sukanya Sarkar, May 20 2026
Trademarks
Close-up of magnifying glass examining a stack of documents on a wooden desk
IP lawyer hopes to ease admin agony with free court bundle software
Tristan Sherliker says he hopes to solve an access to justice issue by making the automated court bundle tool free to use
Max Walters, May 20 2026
Trademarks
Dentons HK.png
Dentons launches IP practice in Hong Kong with three from Bakers
The team, comprising two partners and one senior consultant, plans to offer “highly differentiated” services to clients
Sukanya Sarkar, May 19 2026
Patents
image of tangram puzzle blocks with people icons over wooden table ,human resources and management concept.
Exclusive: HGF hires Marks & Clerk principal as partner
HGF’s new ownership model frees it from the hiring constraints of traditional partnerships, its CEO told Managing IP
Max Walters, May 19 2026
Rankings Analysis
IP STARS TIMELINE article image.png
Our IP STARS rankings are changing: here’s how
New timeline for 2026 aims to provide clearer guidance to firms and practitioners on the full jurisdictional market view
May 18 2026
Patents
AI related law concept shown by savvy robot hand using lawyer working tools
Burden or boon? Lawyers debate clients’ use of AI
Attorneys contemplate whether clients using AI for legal guidance is beneficial to attorney-client relationships or more of a nuisance
Sanjana Mishra, May 18 2026
Gift this article