Granted Patent
Utility
US 6,403,745 · App. 09/450,720
Gradient copolymers, as well as a method for their preparation and their use
Inventors:
Markus Scherer, Joseph M. Bollinger, Joan Souchik
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Nov 30, 1999
Inventors
Markus Scherer
Joseph M. Bollinger
Joan Souchik
Assignee (at issue)
RohMax Additives GmbH
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.