Granted Patent
Utility
US 6,455,463 · App. 09/805,807
Alkaline earth/transition metal lean NOx catalyst
Inventors:
William LaBarge, Mark Hemingway, Joachim Kupe, Galen B. Fisher
Patented Case
View Patent ↗
Granted: Sep 24, 2002
Filed: Mar 13, 2001
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.