Granted Patent
Utility
US 6,475,274 · App. 09/534,667
Process for modifying particle size distribution
Inventors:
R. Lowe, Prakash B. Malla, William M. McClarin III, Don R. Black
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Mar 24, 2000
Inventors
R. Lowe
Prakash B. Malla
William M. McClarin III
Don R. Black
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.