Granted Patent
Utility
US 5,412,257 · App. 07/964,003
High efficiency N-channel charge pump having a primary pump and a non-cascaded secondary pump
Inventors:
Michael V. Cordoba, Kim C. Hardee
Patented Case
View Patent ↗
Granted: May 2, 1995
Filed: Oct 20, 1992
Inventors
Michael V. Cordoba
Kim C. Hardee
Assignees (at issue)
United Memories, Inc.
Nippon Steel Semiconductor Corporation
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.