IP Library Granted Patent US 6,836,172
Granted Patent Utility
US 6,836,172 · App. 10/443,007

Semiconductor switch apparatus including isolated MOS transistors

Inventor: Tomonori Okashita
Patented Case View Patent ↗
Granted: Dec 28, 2004 Filed: May 22, 2003
Inventor
Tomonori Okashita
Assignee (at issue)
NEC Compound Semiconductor Devices, Ltd.

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.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 6,836,172
App. No.
10/443,007
Filed
2003-05-22
Granted
2004-12-28
Kind
B2