Granted Patent
Utility
US 5,128,629 · App. 07/688,805
Method for controlling the output power of digital cellular telephones
Inventor:
Lanh Trinh
Patented Case
View Patent ↗
Granted: Jul 7, 1992
Filed: Apr 22, 1991
Inventor
Lanh Trinh
Assignee (at issue)
Hughes Aircraft Company
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.