Granted Patent
Utility
US 5,378,372 · App. 08/074,254
Control of scale formation in aqueous systems
Inventors:
William S. Carey, Andrew Solov, Donald T. Freese, Libardo A. Perez
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Jun 9, 1993
Inventors
William S. Carey
Andrew Solov
Donald T. Freese
Libardo A. Perez
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.