Granted Patent
Utility
US 6,628,404 · App. 09/718,293
Acoustic sensor for real-time control for the inductive heating process
Inventors:
John Bruce Kelley, Wei Lu, Fred J. Zutavern
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Nov 21, 2000
Inventors
John Bruce Kelley
Wei Lu
Fred J. Zutavern
Assignee (at issue)
Sandia 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.