Granted Patent
Utility
US 5,843,861 · App. 08/779,964
Process for the synthesis of kaolin clays having varying morphological properties
Inventor:
Prakash B. Malla
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Dec 23, 1996
Inventor
Prakash B. Malla
Assignee (at issue)
Thiele Kaolin 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.