Granted Patent
Utility
US 6,525,394 · App. 09/631,862
Substrate isolation for analog/digital IC chips
Inventors:
Ray E. Kuhn, David G. Martin, Rose E. Williams
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Aug 3, 2000
Inventors
Ray E. Kuhn
David G. Martin
Rose E. Williams
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.