Granted Patent
Utility
US 5,321,105 · App. 08/031,243
Polymerization process using a bimodal silica gel as a catalyst support
Inventors:
Louis J. Rekers, Roger D. Laib
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Mar 12, 1993
Inventors
Louis J. Rekers
Roger D. Laib
Assignee (at issue)
Quantum Chemical 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.