Granted Patent
Utility
US 6,489,259 · App. 09/751,928
Mixed zeolite NOx catalyst
Inventors:
William LaBarge, Mark Hemingway, Joachim Kupe, Galen B. Fisher
Patented Case
View Patent ↗
Granted: Dec 3, 2002
Filed: Dec 29, 2000
Inventors
William LaBarge
Mark Hemingway
Joachim Kupe
Galen B. Fisher
Assignee (at issue)
Delphi Technologies
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.