Granted Patent
Utility
US 6,201,093 · App. 09/233,201
Amino-functional polyorganosiloxanes, their production and use
Inventors:
Michael Messner, Holger Rautschek
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Jan 20, 1999
Inventors
Michael Messner
Holger Rautschek
Assignee (at issue)
Huels 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.