I don't have all of the relevant data (I'm missing some information on Osram and Nichia), but I figured I'd assemble this anyway and see what I do have.
June 24, 2005
Gertrude Neumark Rothschild, represented by Sidley Austin LLP, filed a patent infringement action against Cree, alleging violation of patents 4,904,618, "Process for Doping Crystals of Wide Band Gap Semiconductors," and U.S. Patent No. 5,252,499, "Wide Band-Gap Semiconductors Having Low Bipolar Resistivity and Method of Formation."
June 24, 2005
Gertrude Neumark Rothschild, represented by Sidley Austin LLP, filed a patent infringement action against Philips Lumileds, alleging violation of patents 4,904,618, "Process for Doping Crystals of Wide Band Gap Semiconductors," and U.S. Patent No. 5,252,499, "Wide Band-Gap Semiconductors Having Low Bipolar Resistivity and Method of Formation."
July 11, 2005
Compound Semi News announced that Gertrude Neumark Rothschild, represented by Sidley Austin LLP, had filed patent infringement suits against Cree, Lumileds Lighting, Toyoda Gosei, and Osram Opto Semiconductors.
July 27, 2005 (?)
Gertrude Neumark Rothschild, represented by Sidley Austin LLP, filed a patent infringement action against Toyoda Gosei, alleging violation of patents 4,904,618, "Process for Doping Crystals of Wide Band Gap Semiconductors," and U.S. Patent No. 5,252,499, "Wide Band-Gap Semiconductors Having Low Bipolar Resistivity and Method of Formation." (The July 27 date is taken from sslighting.net's reprint of the Sidley Austin press release.)
Date unknown
According to LEDs Magazine, Gertrude Neumark Rothschild, represented by Sidley Austin LLP, filed a patent infringement action against Nichia.
August 9, 2006
Sidley Austin LLP announces settlement of the claim against Toyoda Gosei. Professor Neumark granted rights under both patents to Toyoda Gosei.
Date unknown
According to LEDs Magazine, the patent infringement action against Nichia was settled some time before March 25, 2008.
Date unknown
According to LEDs Magazine, the patent infringement action against Osram Opto Semiconductors was settled some time before March 25, 2008.
February 20, 2008
Gertrude Neumark Rothschild, represented by Dreier LLP, filed a 337 complaint with the International Trade Commission.
March 10, 2008
Sidley Austin LLP announces settlement of the claim against Philips Lumileds. Terms are undisclosed.
March 20, 2008
Both Dreier LLP and the International Trade Commission both announced that the ITC had instituted a Section 337 investigation.
Date to be determined
According to the ITC, ITC administrative law judge Paul J. Luckern will hold an evidentiary hearing.
Date to be determined
According to the ITC, ITC administrative law judge Paul J. Luckern will make an initial determination. (This may be reviewed by the ITC itself, and even if the ITC issues a remedial order, it may be overturned "for policy reasons" by the U.S. Trade Representative.)
(See source links and links to my previous posts here.)
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