Granted Patent
Utility
US 6,534,367 · App. 10/134,213
Trench-gate semiconductor devices and their manufacture
Inventors:
Steven Peake, Georgios Petkos, Robert J. Farr, Christopher M. Rogers, Raymond J. Grover, Peter J. Forbes
Patented Case
View Patent ↗
Granted: Mar 18, 2003
Filed: Apr 26, 2002
Inventors
Steven Peake
Georgios Petkos
Robert J. Farr
Christopher M. Rogers
Raymond J. Grover
Peter J. Forbes
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.