Granted Patent
Utility
US 5,451,249 · App. 08/241,113
Landfill gas treatment system
Inventors:
Ronald J. Spiegel, Richard A. Sederquist, John C. Trocciola, Herbert C. Healy, Roger R. Lesieur, Gregory J. Sandelli
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Jun 14, 1994
Inventors
Ronald J. Spiegel
Richard A. Sederquist
John C. Trocciola
Herbert C. Healy
Roger R. Lesieur
Gregory J. Sandelli
Assignee (at issue)
International Fuel Cells, LLC
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.