Granted Patent
Utility
US 5,108,917 · App. 07/212,591
Process for the preparation of ibuprofen
Inventors:
Mauro A. Bertola, Marie J. De Smet, Arthur F. Marx, Gareth T. Phillips
Patented Case
View Patent ↗
Granted: Apr 28, 1992
Filed: Jun 28, 1988
Inventors
Mauro A. Bertola
Marie J. De Smet
Arthur F. Marx
Gareth T. Phillips
Assignees (at issue)
Gist-Brocades N.V.
Shell Internationale Research Maatschappij B.V.
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.