Granted Patent
Utility
US 5,418,558 · App. 08/057,943
Determining the operating energy of a thermal ink jet printhead using an onboard thermal sense resistor
Inventors:
Scott W. Hock, David A. Johnson, Niels J. Nielsen
Patented Case
View Patent ↗
Granted: May 23, 1995
Filed: May 3, 1993
Inventors
Scott W. Hock
David A. Johnson
Niels J. Nielsen
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.