Granted Patent
Utility
US 6,288,129 · App. 09/431,438
Process for preparing acrylic esters and/or methacrylic esters of hydroxy-functional siloxanes and/or polyoxyalkylene-modified siloxanes and their use
Inventors:
Burghard Gruning, Geoffrey Hills, Wolfgang Josten, Dietmar Schaefer, Stefan Silber, Christian Weitemeyer
Patented Case
View Patent ↗
Granted: Sep 11, 2001
Filed: Nov 1, 1999
Inventors
Burghard Gruning
Geoffrey Hills
Wolfgang Josten
Dietmar Schaefer
Stefan Silber
Christian Weitemeyer
Assignee (at issue)
Th. Goldschmidt. AG
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.