Anti-troll bill may expand CBM review to all patents

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

Anti-troll bill may expand CBM review to all patents

A new bill aiming to curb patent trolls by expanding post-grant patent challenge proceedings has been introduced in the United States

The Stopping the Offensive Use of Patents (STOP) Act, which was introduced by Representatives Darrell Issa and Judy Chu, would expand Covered Business Method (CBM) Review under the AIA to include all types of patents.

The CBM review trial was introduced under the AIA to reduce the number of overly broad business method patents. A party accused of infringing a patent that is covered under Section 18 of the AIA can use the CMB review system to challenge its validity through the USPTO’s Patent Trial and Review Board (PTAB) as an alternative to litigation.

CBM review was introduced as a temporary measure in September 2012. It will end on September 15 2020, after which the USPTO will not accept any new petitions for CBM review.

The STOP Act, however, would make the PTAB proceedings permanent. It was drafted in conjunction with Senator Chuck Schumer, who has been working on the Patent Quality Improvement Act, and incorporates parts of that bill with some adjustments to tailor it to the AIA.

Laurent Crenshaw, Issa’s legislative director, told reporters during a press conference today that it is much cheaper for businesses to challenge the validity of patents under post-grant proceedings than it is for them to pursue litigation. The cost of attempting to have a patent invalidated under the STOP Act would be around $100,000 in fees and costs, including around $30,000 in USPTO fees, compared to multimillion-dollar litigation. In addition, multiple businesses targeted by one troll can split the fees and costs for the proceeding.

Crenshaw acknowledged that the bill is only a partial solution to the patent troll problem. Other pending legislation attempts to address other aspects of the issue, such as the litigation strategies employed by trolls.

“We are quite aware that there are other Congressional offices that are looking at other aspects of the problem so we don’t see this as being the end-all solution but we see it as a very important part of a problem that needs to be dealt with,” said Crenshaw.

The bill is supported by the Food Marketing Institute, an industry association that represents supermarkets. Retailers have increasingly become targets of patent trolls.

“The average profit in our industry is less than 1% so consumers absolutely take a hit from trolls,” said Erik Lieberman, regulatory counsel for the Food Marketing Institute. “Food prices are already forecast to increase by 3-5% this year.”

He said the Institute’s members often face demands from patent assertion entities for commonly used features such as rendering JPEGs and sending out text messages that have links embedded in them.

He described the STOP Act as “very important legislation that will help address the problem of trolls”.

more from across site and SHARED ros bottom lb

More from across our site

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
Lucas Amodio joins our ‘Five minutes with’ series to discuss artificial intelligence systems and patent law
The Americas research cycle has commenced, so don't miss the opportunity to submit your work
Practitioners have welcomed extended funding of the specialist police unit until 2029, while the UKIPO says it is exploring increased scale
Abion says integration with Baylos marks an important step in the company’s international expansion plans
Via Licensing Alliance continues its China push as another smartphone manufacturer joins patent pool as licensee
Law firm mergers have the potential to reshape IP teams, and partners who were at the coalface of previous tie-ups say early coordination and flexibility can make the difference
Women are entering the IP profession, but still too few are being trusted with the clients, cases, and credit that may open the path to leadership
In other news, Australia’s IP office has announced expanded search options, and an EPO report shed light on slow progress relating to women inventors in Europe
Managing IP speaks with up-and-coming women lawyers at five law firms about fighting imposter syndrome, maintaining work-life balance and why real representation matters
Gift this article