Granted Patent
Utility
US 5,948,943 · App. 08/951,607
Process improvement to produce low color trimethylolpropane
Inventors:
Carolyn Supplee, Rodolfo W. Laurel, George C. Seaman
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Oct 16, 1997
Inventors
Carolyn Supplee
Rodolfo W. Laurel
George C. Seaman
Assignee (at issue)
Celanese International Corporation
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.