Granted Patent
Utility
US 4,687,741 · App. 06/845,655
Novel enzymes which catalyze the degradation and modification of lignin
Inventors:
Roberta L. Farrell, Thomas K. Kirk, Ming Tien
Patented Case
View Patent ↗
Granted: Aug 18, 1987
Filed: Mar 28, 1986
Inventors
Roberta L. Farrell
Thomas K. Kirk
Ming Tien
Assignees (at issue)
Repligen Corporation
The United States of America, as represented by the Secretary of Agriculture
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.