Granted Patent
Utility
US 6,408,771 · App. 09/392,418
Methods of improving productivity of black liquor recovery boilers
Inventors:
Louis C. Philippe, Eric Duchateau, David R. Scheeff, Arie Verloop, Edward C. Dye
Patented Case
View Patent ↗
Granted: Jun 25, 2002
Filed: Sep 9, 1999
Inventors
Louis C. Philippe
Eric Duchateau
David R. Scheeff
Arie Verloop
Edward C. Dye
Assignees (at issue)
Air Liquide America Corporation
American Air Liquide, Inc.
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
Jansen Combustion and Boiler Technologies, 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.