Granted Patent
Utility
US 6,782,943 · App. 10/058,102
Fouling reduction device for a tubular heat exchanger
Inventor:
Claude Baudelet
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Jan 29, 2002
Inventor
Claude Baudelet
Assignee (at issue)
Elf Antar France
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.