Power-One Expands Patent Lawsuits

Camarillo-based Power-One has expanded its patent suit against competitor Artesyn Technologies, the company said yesterday. Power-One said that it has added two additional patent applications to the list of patents it says that Artesyn has violated. The company also said that it has sued Silicon Laboratories for violation of the same patents. Power-One is looking for an injunction against Silicon Laboratories products for prohibit selling and manufacturing of Silicon Laboratories digital power supply controllers.