Granted Patent
Utility
US 6,812,525 · App. 10/465,496
Trench fill process
Inventors:
Igor Bul, Srikant Sridevan
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Jun 18, 2003
Inventors
Igor Bul
Srikant Sridevan
Assignee (at issue)
International Rectifier 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.