News | July 28, 2009

IMRA Suit Proceeds Against IPG

IMRA America, a world leader in the research, development, manufacturing and application of ultra-fast fiber lasers, today received a written Notice from the US Patent and Trademark Office, confirming the patentability of all claims in its US Patent 5,818,630, entitled "Single-Mode Amplifiers and Compressors Based on Multi-Mode Fibers."

In November of 2006, IMRA filed suit against IPG Photonics Corporation (IPG) in the United States District Court for the Eastern District of Michigan, for infringement of IMRA's "'630 patent." In March of 2008, IPG asked the U.S. Patent and Trademark Office to reexamine the patent, alleging that the patent is "invalid". In the meantime, the District court suspended the infringement suit pending the outcome of the reexamination proceeding.

The latest decision by the U.S. Patent and Trademark Office rejects IPG's allegations of invalidity, reconfirms the patentability of all claims in IMRA's patent, and clears the way for the infringement suit to proceed against IPG.

During the reexamination, the U.S. Patent and Trademark Office also confirmed that a series of new claims submitted by IMRA are also patentable, providing IMRA with even further patent protection.

About IMRA America, Inc.
Founded in 1990, IMRA America, Inc., headquartered in Ann Arbor, Mich., is a global-acting company dedicated to being the leader in the development of ultra-fast fiber laser technologies for commercial applications. IMRA turnkey fiber lasers with their compact size, high stability and maintenance-free operation, are ideal optical pulse sources for: material processing, semiconductor inspection and repair, homeland security, instrumentation, medical diagnostics and therapy, and telecommunications. They are based on IMRA proprietary fiber oscillator, fiber amplifier, advanced pulse compressor technologies, and laser applications documented in over 70 U.S. patents and over 120 U.S. patent applications and many more worldwide. In addition to delivering innovation through its products, IMRA America offers its technologies through patent and technology licensing. For more information, visit