Granted Patent
Utility
US 6,541,817 · App. 09/450,229
Trench-gate semiconductor devices and their manufacture
Inventors:
Godefridus Adrianus Maria Hurkx, Raymond J. E. Hueting
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Nov 29, 1999
Inventors
Godefridus Adrianus Maria Hurkx
Raymond J. E. Hueting
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.