Granted Patent
Utility
US 6,369,189 · App. 09/456,223
Hindered amine adducts for polyurea systems
Inventors:
Bryan Naderhoff, Ling Tan, Jeffrey Danneman
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Dec 7, 1999
Inventors
Bryan Naderhoff
Ling Tan
Jeffrey Danneman
Assignee (at issue)
Reichhold, 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.