Granted Patent
Utility
US 6,506,847 · App. 09/924,253
Controlling the molecular weight of graft copolymers using polymerizable chain transfer agents
Inventor:
Cheng Q. Song
Patented Case
View Patent ↗
Granted: Jan 14, 2003
Filed: Aug 8, 2001
Inventor
Cheng Q. Song
Assignee (at issue)
Basell Poliolefine Italia S.r.l.
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.