Granted Patent
Utility
US 4,963,479 · App. 07/091,861
Reagent system for an alpha-amylase assay containing aromatic substituted glycoside
Inventors:
Rodrigo G. Chavez, Harold David, Ernest K. Metzner, Gerald Sigler, Emily S. Winn-Deen
Patented Case
View Patent ↗
Granted: Oct 16, 1990
Filed: Sep 4, 1987
Inventors
Rodrigo G. Chavez
Harold David
Ernest K. Metzner
Gerald Sigler
Emily S. Winn-Deen
Assignee (at issue)
Hoechst Celanese Corporation
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.