Granted Patent
Utility
US 4,553,041 · App. 06/525,196
Monolithic zero crossing triac driver
Inventor:
Hyung Jin Yim
Patented Case
View Patent ↗
Granted: Nov 12, 1985
Filed: Aug 22, 1983
Inventor
Hyung Jin Yim
Assignee (at issue)
Motorola, 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.