PDL BioPharma, Inc. (PDL) is a is a biotech company. PDL is engaged in the management of antibody humanization patents and royalty assets, which consist of its Queen et al. patents and license agreements with various biotechnology and pharmaceutical companies. The Company receives royalties based on sales of humanized antibody products marketed and may also receive royalty payments on additional humanized antibody products launched before final expiry in December 2014. It has entered into licensing agreements with numerous entities that are independently developing or have developed humanized antibodies under which it has licensed certain rights under its Queen et al. patents to make, use, sell, offer for sale and import humanized antibodies.