Granted Patent
Utility
US 6,495,640 · App. 09/523,515
Process for polymerizing alpha-olefins
Inventors:
Fabian Siberdt, Philippe Francois, Stephane Paye
Patented Case
View Patent ↗
Granted: Dec 17, 2002
Filed: Mar 10, 2000
Inventors
Fabian Siberdt
Philippe Francois
Stephane Paye
Assignee (at issue)
Solvay Polyolefins Europe-Belgium (Societe Anonyme)
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.