SAN DIEGO--(BUSINESS WIRE)--Novocell, Inc., a stem cell engineering company, today announced that it has received U.S. Patent 7,510,876 with claims covering human definitive endoderm cells, an essential cell for generating not only pancreatic type cells, which Novocell is developing for use as a cell therapy for diabetes, but also other endoderm lineage-derived tissues and organs such as lungs, intestine, liver, thymus and thyroid.