Granted Patent
Utility
US 6,087,455 · App. 09/213,785
Process for hydrogenation of macromolecular organic substrates
Inventors:
Jean-Paul Lange, Lodewijk Schoon
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: Dec 17, 1998
Inventors
Jean-Paul Lange
Lodewijk Schoon
Assignee (at issue)
SHELL OIL 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.