Granted Patent
Utility
US 5,690,039 · App. 08/664,679
Method and apparatus for reducing nitrogen oxides using spatially selective cooling
Inventors:
Richard J. Monro, Peter Marx
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Jun 17, 1996
Inventors
Richard J. Monro
Peter Marx
Assignee (at issue)
RJM Corporation
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.