Paul Leitner-Wise, principal of Leitner-Wise Manufacturing and the “LW” in the original LWRC, filed a lawsuit yesterday against Sig Sauer and LWRC International in Federal court in Maryland. Anyone with a passing interest in the firearms industry is aware of the animosity between Leitner-Wise and LWRC, but adding Sig to the mix is a surprising twist.
Leitner-Wise asserts his “Self-Cleaning Gas Operating System for a Firearm,” patent against both defendants. He's also making claims against LWRC for unjust enrichment and breach of contract. Interestingly, Leitner-Wise's complaint calls out more than just patent infringement.
“We find it deeply troubling that two major firearms manufacturers can predicate the entire success of their piston rifles upon a patent which was assigned without the inventors knowledge and to which they have never paid a penny in royalties,” said Matthew LeFande, the attorney representing Leitner-Wise.
According to patent law expert (and a RECOIL legalese interpreter), Malvern “Griff” Griffin, the patent at issue relates to a self-regulating short-stroke piston operating system for AR-15 type, self-loading rifles. The suit takes aim at LWRC and Sig Sauer products using Leitner-Wise's self-regulating short-stroke piston system. The complaint specifically names over a dozen different rifle and pistol models, including the LWRC IC-A5 rifle and the SIG MCX rifle.
As explained in the complaint, during that 2011 case, Sig Sauer uncovered the defective patent assignment and informed LWRC International. As a result of that information, asserts Leitner-Wise, both LWRC International and Sig Sauer “conspired to discontinue such litigation amicably as to avoid further disclosure of the fraudulent 2008 assignment and to continue such infringement [of the patent] unimpeded.”
Reached by phone, LWRC spokesman David Golliday declined to comment, as did Sig Sauer spokesman Jordan Hunter, reached by email.
With the filing of Mr. Leitner-Wise's complaint, and assuming the defendants have been served, they will have a few weeks to file an answer with the court.
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