On Feb. 22, 2013, Essilor International S.A. and Essilor of America, Inc., filed a patent infringement action with the U.S. District Court, Eastern District of Texas, Sherman Division, against Indizen Optical Technologies S.L.; Indizen Optical Technologies of America, LLC; Younger Manufactuirng Co. d/b/a/ Younger Optics; Vision Service Plan; VSP Labs, Inc.; and VSP Optical Group, Inc. This suit was filed about a month after Essilor sent Indizen and Younger Optics letters giving notice of their reported infringement of Essilor International's 271 Patent. On February 13, 2013, Essilor sent the VSP, VSP Labs, and VSP Optical a letter giving notice of their reported infringement of Essilor's patent, which covers its progressive addition lenses. For a copy of the suit, click this link.
"On Feb. 20, Younger Optics, Indizen Optical Technologies, Indizen Optical Technologies of America, Vision Service Plan, VSP Labs and VSP Optical Group filed suit against Essilor International and Essilor of America in U.S. District Court for the Central District of California, Western Division," according to a Vision Monday post. "The companies are seeking a declaratory judgment stating that the manufacture and sale of their progressive lenses, including VSP Unity PLxpression lenses, does not infringe three Essilor International patents on digital progressive lenses, either directly or indirectly. In their suit, the companies are also seeking to invalidate all three Essilor patents because they claim the patents fail to comply with U.S. patent laws." Read more.