Chemgen Corporation Trademarks
HEMICELL
Filed: November 27, 1990
enzymes for use in oil and gas well production
Owned by: Chemgen Corporation
Serial Number: 74118337
HEMICELL
Filed: July 17, 1991
biochemicals for use in the processing of foodstuffs for humans and for processing wood and paper products, biomass and…
Owned by: Chemgen Corporation
Serial Number: 74185838
