PDL BioPharma, Inc. manages a portfolio of patents and royalty assets in the United States and Europe. The company is involved in the humanization of monoclonal antibodies and the discovery of a new generation of targeted treatments for cancer and immunologic diseases. It offers Queen et al. patents that cover humanized antibodies, methods for humanizing antibodies, polynucleotide encoding in humanized antibodies, and methods of producing humanized antibodies. PDL BioPharma, Inc. has license agreements with various biotechnology and pharmaceutical companies, as well as acquires royalty and other assets. 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.