Granted Patent
Utility
US 5,128,607 · App. 07/611,242
Constant events frequency measurement and fast inverse circuit
Inventors:
David W. Clark, David C. Chu, Alan Davis, Keith M. Ferguson
Patented Case
View Patent ↗
Granted: Jul 7, 1992
Filed: Nov 9, 1990
Inventors
David W. Clark
David C. Chu
Alan Davis
Keith M. Ferguson
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.