CIG is grateful to be involved in this key milestone event by Broadband Forum.

Cambridge Industries USA, Inc. (CIG USA), a Delaware corporation headquartered in Santa Clara, California, today announced that it has filed Petitions with the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office for Inter Partes Review (IPR) of U.S. patents asserted by Applied Optoelectronics, Inc. (AOI, NASDAQ:AAOI) in AOI’s infringement action, which is pending in the United States District Court for the Northern District of California.