LOS ANGELES, California, June 18 /PRNewswire-FirstCall/ -- Canopus BioPharma, Inc.

Invitrogen and the Wisconsin Alumni Research Foundation have signed a license for human embryonic stem cell patents for the development of research tools.

Invitrogen Corporation (NASDAQ:IVGN), a provider of essential life science technologies for research, production and diagnostics, and the Wisconsin Alumni Research Foundation (WARF), the private, non-profit patenting and licensing organization for the University of Wisconsin-Madison, announced today that they have signed a license for human embryonic stem cell (hESC) patents for the development of research tools.

By KATHLEEN GALLAGHER The Wisconsin Alumni Research Foundation said Tuesday the U.S. Patent and Trademark Office has rejected challenges to its two key embryonic stem cell patents.

By Kathleen Gallagher, Milwaukee Journal Sentinel Mar. 12--The Wisconsin Alumni Research Foundation said Tuesday the U.S. Patent and Trademark Office has rejected challenges to its two key embryonic stem cell patents.