Granted Patent
Utility
US 6,262,899 · App. 09/563,462
Power factor corrected UPS maintaining neutral integrity and methods of operation thereof
Inventors:
William J. Raddi, Joseph C. Paulakonis, Robert W. Johnson
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: May 2, 2000
Inventors
William J. Raddi
Joseph C. Paulakonis
Robert W. Johnson
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.