Granted Patent
Utility
US 6,284,848 · App. 09/010,852
Gas phase polymerization process
Inventors:
Daniel Durand, Frederic R. M. M. Morterol
Patented Case
View Patent ↗
Granted: Sep 4, 2001
Filed: Jan 22, 1998
Inventors
Daniel Durand
Frederic R. M. M. Morterol
Assignee (at issue)
BP Chemicals Limited
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.