"#5,712,147 DNA Encoding Bacillus licheniformis PWD-1 Keratinase Jason C. H. Shih, Xiang Lin, and Eric S. Miller (1998) In addition to the U.S., these patents have been issued or pending in many foreign countries, including Canada, Mexico, European Union, South Africa, Australia, New Zealand, Brazil, China, Taiwan, South Korea, and Japan." . . . .