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Patent Law: Philip Brooks’ Patent Infringement Updates
ITC Investigates Blue Laser Patent Claim
By Philip Brooks
Ian Williams writing for vnunet.com today, 26 Mar 2008:
The US International Trade Commission has begun an investigation into certain short-wavelength light emitting diodes and laser diodes following a patent infringement complaint.
Gertrude Neumark Rothschild, an emeritus professor at Columbia University, claims to own a patent on a method of producing wide-band gap semiconductors for LEDs and laser diodes at the blue and ultraviolet end of the light spectrum.
Rothschild alleges violations of section 337 of the Tariff Act of 1930 and is seeking to block the import of all LEDs and lasers that fall foul of the patent, as well as any products which use the technology.
These include hand-held mobile devices, instrument panels, billboards, traffic lights, Blu-ray disc players and data storage devices.
Companies under investigation include Avago Technologies, Everlight Electronics, Hitachi, LG, Lite-On Technology, Matsushita, Motorola, Nokia, Pioneer, Samsung, Sanyo, Sharp, Sony, Sony Ericsson and Toshiba.
Read the full article here.
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