Epistar Corp of Hsinchu Science-based Industrial Park, Taiwan (the world's largest manufacturer of LED epiwafers and chips) has filed a patent infringement lawsuit against Adamax Inc (trading as Newhouse Lighting) in the US District Court for the Northern District of California. The complaint asserts that Newhouse Lighting products and technology infringe six Epistar patents and seeks injunctive relief to halt further sales.
Epistar's complaint alleges that the Newhouse Lighting filament bulbs such as the Dimmable Flame Tip 3.5W LED Vintage Edison Filament Bulb infringe one or more claims of Epistar's US patent numbers 6,346,771 ('High Power LED Lamp'), 7,489,068 ('Light Emitting Device'), 7,560,738 ('Light-Emitting Diode Array Having An Adhesive Layer'), 8,240,881 ('Light-Emitting Device Package'), 8,791,467 ('Light Emitting Diode And Method Of Making The Same'), and 9,065,022 ('Light-Emitting Apparatus').
Epistar notes that it has invested millions of dollars in R&D on LED technologies that have led to a patent portfolio consisting of over 4000 issued patents and pending patent applications, laying the foundation of its LED filament technologies.
