Granted Patent
Utility
US 5,139,945 · App. 07/245,275
Thermostable alginate lyase from Bacillus steraothermophilus
Inventor:
Chi-Li Liu
Patented Case
View Patent ↗
Granted: Aug 18, 1992
Filed: Sep 16, 1988
Inventor
Chi-Li Liu
Assignee (at issue)
Novo Industri A/S
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.