Granted Patent
Utility
US 5,538,191 · App. 08/387,769
Methods and apparatus for high-shear material treatment
Inventor:
Richard A. Holl
Patented Case
View Patent ↗
Granted: Jul 23, 1996
Filed: Feb 21, 1995
Inventor
Richard A. Holl
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.