By Memorandum entered by The Honorable Leonard P. Stark in Westinghouse Air Brake Technologies Corp. v. Siemens Industry Inc., Civil Action No. 17-1687-LPS (D.Del. August 2, 2018), the Court denied Plaintiff Westinghouse Air Brake Technologies Corporation’s (d/b/a Wabtec Corporation) Motion for Preliminary Injunction to enjoin Defendant Siemens Industry, Inc. (“Siemens”) from infringing claims 4, 6 and 24 of U.S. Patent No. 8,478,463 (“the ‘463 patent”) by selling the on-board unit component of Siemens’ positive training control (“PTC”) system, known as Trainguard, in the United States. Following a full evidentiary hearing, the Court denied Wabtec’s Motion for Preliminary Injunction upon concluding that, although Wabtec demonstrated that it will likely prove infringement, Siemens established that it is more likely than not to prove by clear and convincing evidence that the ‘463 patent is invalid in light of the Kull prior art reference. Id. at *2. The Court also concluded that the public interest and the balance of harms weigh more in favor of denying the requested injunctive relief – “as an injunction might cause Siemens to lose the benefit of its substantial investment in developing a competing technology, and because of the harm that would result from altering the status quo of a two-player market.” Id. at *2-3.

A copy of the Memorandum is attached.

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