Granted Patent
Utility
US 5,611,939 · App. 08/657,122
Methods for inhibiting the production of slime in aqueous systems
Inventors:
Roy Hernandez-Mena, Richard J. Sujdak, Patric L. Friend
Patented Case
View Patent ↗
Granted: Mar 18, 1997
Filed: Jun 3, 1996
Inventors
Roy Hernandez-Mena
Richard J. Sujdak
Patric L. Friend
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.