Granted Patent
Utility
US 6,160,722 · App. 09/401,423
Uninterruptible power supplies with dual-sourcing capability and methods of operation thereof
Inventors:
James M. Thommes, Robert W. Johnson, William J. Raddi
Patented Case
View Patent ↗
Granted: Dec 12, 2000
Filed: Sep 22, 1999
Inventors
James M. Thommes
Robert W. Johnson
William J. Raddi
Assignee (at issue)
Powerware Corporation
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.