Granted Patent
Utility
US 5,247,264 · App. 07/940,498
Combining circuit for Class-E RF power amplifiers
Inventor:
David W. Cripe
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: Sep 4, 1992
Inventor
David W. Cripe
Assignee (at issue)
Broadcast Electronics, 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.