Granted Patent
Utility
US 5,041,463 · App. 07/566,650
Biocidal compositions and use thereof containing a synergistic mixture of glutaraldehyde and dodecylguanidine hydrochloride
Inventors:
Wilson K. Whitekettle, John T. Conlan
Patented Case
View Patent ↗
Granted: Aug 20, 1991
Filed: Aug 13, 1990
Inventors
Wilson K. Whitekettle
John T. Conlan
Assignee (at issue)
Betz Laboratories, 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.