Granted Patent
Utility
US 6,683,136 · App. 10/027,762
Epoxidized soybean oil enhanced hydrogenation of nitrile copolymer
Inventors:
Sharon Guo, Paul Nguyen
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Dec 19, 2001
Inventors
Sharon Guo
Paul Nguyen
Assignee (at issue)
Bayer Aktiengesellschaft
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.