Granted Patent
Utility
US 5,275,991 · App. 07/984,052
Supported high activity polyolefin catalyst component with regular distribution of magnesium values provided utilizing a controlled drying protocol
Inventors:
Charles K. Buehler, Albert P. Masino, Raghu Menon
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: Nov 30, 1992
Inventors
Charles K. Buehler
Albert P. Masino
Raghu Menon
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.