Granted Patent
Utility
US 5,607,597 · App. 08/431,338
Method for enhancing biocidal activity
Inventors:
J. Barry Wright, Daniel L. Michalopoulos
Patented Case
View Patent ↗
Granted: Mar 4, 1997
Filed: Apr 28, 1995
Inventors
J. Barry Wright
Daniel L. Michalopoulos
Assignee (at issue)
Betzdearborn, 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.