Granted Patent
Utility
US 5,281,526 · App. 07/963,542
Method of purification of amylase by precipitation with a metal halide and 4-hydroxybenzic acid or a derivative thereof
Inventors:
Ivan C. Good, Chong Y. Kim, Jayarama K. Shetty, Kent M. Sproat
Patented Case
View Patent ↗
Granted: Jan 25, 1994
Filed: Oct 20, 1992
Inventors
Ivan C. Good
Chong Y. Kim
Jayarama K. Shetty
Kent M. Sproat
Assignee (at issue)
Solvay Enzymes, Inc.
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.