The fine line between abuse and fair use at the PTAB

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

The fine line between abuse and fair use at the PTAB

May 27 2015
Kyle Bass

Hedge fund manager Kyle Bass has outraged the pharma and biotech industries by seeking to invalidate their patents at the PTAB, with some observers linking his attacks to short-selling of company stocks. Michael Loney reports on a controversy that goes to the heart of the US patent system

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

FeaturesNewsUnited StatesNorth AmericaJurisdictions
more from across site and SHARED ros bottom lb

More from across our site

Patents
cjeu-copyright-comp-600.jpg
UPC update: CJEU set for UPC role | All along the Washtower
The latest in a dispute over juicing machines, and a shakeup in judicial compositions were also among the top developments
Max Walters, March 12 2026
Patents
Robert Hollingshead headshot.jpg
‘No plans to scale down’: Pillsbury strengthens Tokyo presence with IP hire
Patent partner Robert Hollingshead explains why the firm remains committed to Japan despite several US firms exiting the Japanese and greater Asia market
Sukanya Sarkar, March 12 2026
Trademarks
Iceland news-comp.jpg
No ordinary thaw: could Iceland TM resolution prompt wider strategy shift?
Emma Green, partner at Bird & Bird, shares why the Iceland v Iceland dispute could prompt businesses and lawyers to think differently about brand enforcement
Emma Green, March 11 2026
Patents
3D Illustration of AI and Machine Learning- Understanding the Black Box
Exclusive: IP lawyers' AI tool aims to overcome ‘black box’ woes
Attain IP, developed by two UK patent lawyers, will meet ‘forensic’ needs of patent attorneys by showing a verifiable reasoning chain, according to its co-founders
Max Walters, March 11 2026
Trademarks
KatyPerryWestminst111224_(81_of_95)_(54206733094)_(cropped_2).jpg
A roaring success: Katie Perry beats pop star Katy Perry in TM battle
The High Court of Australia has allowed a fashion designer to retain her registered ‘Katie Perry’ trademark for clothing
Sukanya Sarkar, March 11 2026
Patents
Ozempic.jpg
Novo Nordisk loses Ozempic appeal in India
Sim & San secured the win for Dr. Reddy’s, which will allow the pharma company to manufacture and export semaglutide, the active ingredient in Ozempic
Sukanya Sarkar, March 10 2026
Patents
AmodioL_hi.jpg
‘No knowledge is wasted’: patent attorney on juggling multiple tasks
Lucas Amodio joins our ‘Five minutes with’ series to discuss artificial intelligence systems and patent law
March 10 2026
Managing IP Awards
Copy of LS Research SMC.png
Life Sciences Americas 2026: research cycle now open
The Americas research cycle has commenced, so don't miss the opportunity to submit your work
Shailyn Tirado, March 10 2026
Trademarks
view of traditional police station lamp in England
UKIPO eyes IP crime unit expansion, confirms continued funding
Practitioners have welcomed extended funding of the specialist police unit until 2029, while the UKIPO says it is exploring increased scale
March 10 2026
Trademarks
baylos_abion.jpg
Abion acquires Spanish firm at heart of ‘Beckham’ trademark
Abion says integration with Baylos marks an important step in the company’s international expansion plans
Max Walters, March 10 2026
Gift this article