Granted Patent
Utility
US 5,015,989 · App. 07/387,085
Film resistor with enhanced trimming characteristics
Inventors:
Paul Dana Wohlfarth, Gregg L. Buchanan
Patented Case
View Patent ↗
Granted: May 14, 1991
Filed: Jul 28, 1989
Inventors
Paul Dana Wohlfarth
Gregg L. Buchanan
Assignees (at issue)
Pacific Hybrid Microelectronics, Inc.
N.W. Silicon Specialists, Inc.
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.