Granted Patent
Utility
US 6,008,263 · App. 09/054,554
Molded and slab polyurethane foam prepared from double metal cyanide complex-catalyzed polyoxyalkylene polyols and polyols suitable for the preparation thereof
Inventors:
Andrew Thompson, Wolfgang Schmidt, Donald Frank Rohr, Jack R. Reese, Mark Kinkelaar, Danny J. Frich, Thomas Farrell, Chiu Y. Chan, Robert W. Beisner
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Apr 3, 1998
Inventors
Andrew Thompson
Wolfgang Schmidt
Donald Frank Rohr
Jack R. Reese
Mark Kinkelaar
Danny J. Frich
Thomas Farrell
Chiu Y. Chan
Robert W. Beisner
Assignee (at issue)
Lyondell Chemical Worldwide, 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.