Granted Patent
Utility
US 6,505,475 · App. 09/577,703
Method and apparatus for measuring and improving efficiency in refrigeration systems
Inventors:
Kevin Zugibe, Douglas Schmidt
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: May 23, 2000
Inventors
Kevin Zugibe
Douglas Schmidt
Assignee (at issue)
Hudson Technologies, 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.