Granted Patent
Utility
US 4,455,393 · App. 06/434,806
Catalyst for reducing the ignition temperature of diesel soot and process for making the catalyst
Inventors:
Rainer Domesle, Herbert Volker
Patented Case
View Patent ↗
Granted: Jun 19, 1984
Filed: Oct 18, 1982
Inventors
Rainer Domesle
Herbert Volker
Assignee (at issue)
Degussa AG
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.