Granted Patent
Utility
US 4,307,444 · App. 06/095,898
Method and apparatus for stabilized integral control of static power frequency changers
Inventors:
Eric J. Stacey, Ralph D. Jessee
Patented Case
View Patent ↗
Granted: Dec 22, 1981
Filed: Nov 19, 1979
Inventors
Eric J. Stacey
Ralph D. Jessee
Assignee (at issue)
Westinghouse Electric Company LLC
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.