PDL BioPharma, Inc., together with its subsidiaries, manages various patents in the United States and internationally. The company’s patents cover humanization of antibodies. It also offers notes and other long-term receivables services, as well as engages in the equity investment activities. It offer LENSAR, which focuses on designing, developing, and marketing an femtosecond laser system for the treatment of cataracts and the management of pre-existing or surgically induced corneal astigmatism The company was formerly known as Protein Design Labs, Inc. and changed its name to PDL BioPharma, Inc. in 2006. PDL BioPharma, Inc. was founded in 1986 and is headquartered in Incline Village, Nevada.