Granted Patent
Utility
US 6,109,096 · App. 08/938,419
Methods and apparatus for monitoring water process equipment
Inventors:
Haiwen Chen, Ke Hong
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Sep 26, 1997
Inventors
Haiwen Chen
Ke Hong
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.