Granted Patent
Utility
US 6,680,417 · App. 10/037,654
Oligomerization using a solid, unsupported metallocene catalyst system
Inventors:
Vahid Bagheri, Robert E. Farritor, Randall J. Stolk, Andrew D. Overstreet, David Eisenberg, Frederic Grzeszczak
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Jan 3, 2002
Inventors
Vahid Bagheri
Robert E. Farritor
Randall J. Stolk
Andrew D. Overstreet
David Eisenberg
Frederic Grzeszczak
Assignee (at issue)
BP Corporation North America Inc.
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.