Granted Patent
Utility
US 6,072,101 · App. 08/974,125
Multicomponent superabsorbent gel particles
Inventors:
Thomas W. Beihoffer, Michael A. Mitchell
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Nov 19, 1997
Inventors
Thomas W. Beihoffer
Michael A. Mitchell
Assignee (at issue)
AMCOL 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.