Granted Patent
Utility
US 6,080,863 · App. 09/320,155
Process for producing piperidine
Inventors:
Michael S. Matson, Michael D. Mitchell
Patented Case
View Patent ↗
Granted: Jun 27, 2000
Filed: May 26, 1999
Inventors
Michael S. Matson
Michael D. Mitchell
Assignee (at issue)
Phillips Petroleum Company
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.