Granted Patent
Utility
US 6,404,271 · App. 09/756,932
Charge pump circuit
Inventor:
John R. A. Ayres
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Jan 9, 2001
Inventor
John R. A. Ayres
Assignee (at issue)
KONINKLIJKE PHILIPS ELECTRONICS NV
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.