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Jury rules in favor of IPG in fiber laser patent suit by IMRA America

Oct. 7, 2011

A jury in the District Court for the Eastern District of Michigan has determined that IPG Photonics Corp. does not infringe on IMRA America's US Patent 5,818,630 in a fiber laser patent suit originally brought by IMRA in 2006.

LFW Staff

Oxford, MA--A jury in the District Court for the Eastern District of Michigan has determined that IPG Photonics does not infringe on IMRA America's (IMRA) US Patent 5,818,630 in a fiber laser patent suit originally brought by IMRA in 2006.

In its ruling, the jury found that the Company did not infringe on the claims asserted by IMRA. To reach this verdict, the jury heard testimony from two of the inventors of the patent; experts in lasers, amplifiers, and optics; and employees from both IPG and IMRA. The testimony and evidence put forth to the jury failed to prove that IPG in any way infringed.

Takashi Omitsu, president of IMRA America, commented on the results of the trial: "We are disappointed that the jury has not agreed with our position and has not protected our valuable patent rights. Despite this result, IMRA remains committed to protecting and enforcing its intellectual property."

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LFW Staff

Published since 1965, Laser Focus World—a brand and magazine for engineers, researchers, scientists, and technical professionals—provides comprehensive global coverage of optoelectronic technologies, applications, and markets. With 80,000+ qualified print subscribers in print and over a half-million annual visitors to our online content, we are the go-to source to access decision makers and stay in-the-know.