Granted Patent
Utility
US 6,048,614 · App. 08/975,024
Electrically charged filtration media
Inventors:
Ronald P. Rohrbach, Gordon W. Jones, Peter D. Unger, Daniel E. Bause, Lixin Xue, Russell Dondero
Patented Case
View Patent ↗
Granted: Apr 11, 2000
Filed: Nov 20, 1997
Inventors
Ronald P. Rohrbach
Gordon W. Jones
Peter D. Unger
Daniel E. Bause
Lixin Xue
Russell Dondero
Assignee (at issue)
AlliedSignal, Inc.
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.