Kyle Bass vows to keep returning to the PTAB “kangaroo court”

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

Copyright © Legal Benchmarking Limited and its affiliated companies 2025

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

Kyle Bass vows to keep returning to the PTAB “kangaroo court”

If Kyle Bass has been put off by the PTAB denying three of his IPR petitions, he's not showing it. He has filed a further nine petitions since the Coalition for Affordable Drugs' first setback and has labelled the PTAB a kangaroo court

kyle20bass20150.jpg

It has been a bad couple of weeks for hedge fund manager Kyle Bass’s efforts to get pharmaceutical companies’ patents invalidated. The Patent Trial and Appeal Board has denied three of the Coalition for Affordable Drugs’ petitions – two challenging patents covering Acorda’s Ampyra drug and one covering Biogen’s Tecfidera treatment.

Bass is not taking it lying down – he has slammed the Board and USPTO director Michelle Lee while continuing to file inter partes review petitions.

“It appears to me, after the Biogen ruling, that Michelle Lee and the US Patent and Trademark Office are running a kangaroo court,” Bass told Business Insider. He added that Lee should “stick to calling balls and strikes” instead of forwarding a political agenda.

He told the Wall Street Journal he would persist in his campaign. “I’ve spent years of my life working on this and my arguments are as good as can be. I think I can win if they’ll just hear the cases on the merits,” he said.

True to his word, he has filed nine more petitions since the Board issued its first denial of a Coalition for Affordable Drugs petition on August 24, bringing his total number of petitions to 32.

Pepper Hamilton, which represents Acorda and the University of Pennsylvania on various matters, noted the manner of the Board’s denials so far may have given Bass hope. “However, in each instance, the PTAB reached decisions on the merits of the hedge fund’s petitions. The fact that the PTAB considered the petitions and did not exercise its discretion to reject them outright based on the fund’s primary goal of depressing stock prices, was all the encouragement Bass needed,” said Pepper Hamilton partner Tom Engellenner.

According to Docket Navigator, the nine recent petitions comprised four more targeting Acorda patents, three targeting Insys Pharma patents and three targeting Trustees of the University of Pennsylvania patents.

more from across site and SHARED ros bottom lb

More from across our site

Monika Żuraw, founder of Żuraw & Partners, discusses why IP should be part of the foundation of a business, and taking on projects that others walk away from
Lawyers say attention will turn to the UK government’s AI consultation after judgment fails to match pre-trial hype
Susan Keston and Rachel Fetches at HGF explain why the CoA’s decision to grant the UPC’s first permanent injunction demonstrates the court’s readiness to diverge from national court judgments
IP, M&A, life sciences and competition partners advised on deal that brings together brands such as ‘Huggies’ and ‘Kleenex’ with ‘Band-Aid’ and ‘Tylenol’
Stability AI, represented by Bird & Bird, is not liable for secondary copyright infringement, though Fieldfisher client Getty succeeds in some trademark claims
Plasseraud IP says it is eyeing AI and quantum computing expertise with new hire from Cabinet Netter
In the fifth episode of a podcast series celebrating the tenth anniversary of IP Inclusive, we discuss the ‘Careers in Ideas’ network and how to open access to the profession
McGuireWoods’ focussed experimentation and disciplined execution of AI tools is sharpening its IP practice
As Marshall Gerstein celebrates its 70-year anniversary, Jeffrey Sharp, managing partner, reflects on lessons that shaped both his career and the firm’s success
News of two pharma deals involving Novo Nordisk and GSK and a loss for Open AI were also among the top talking points
Gift this article