Granted Patent
Utility
US 6,685,902 · App. 09/952,749
Procedure and apparatus for the cleaning of flue gases containing sulfur dioxide
Inventors:
Jean-Xavier Morin, Joachim Seeber
Patented Case
View Patent ↗
Granted: Feb 3, 2004
Filed: Sep 14, 2001
Inventors
Jean-Xavier Morin
Joachim Seeber
Assignee (at issue)
ALSTOM (Switzerland) Ltd
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.