Granted Patent
Utility
US 6,380,413 · App. 09/852,050
Process for the preparation of yellow bis (3-[triethoxysilyl]propyl) tetrasulfane
Inventors:
Roland Krafczyk, Ulrich Deschler, Rudolf Michel
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: May 10, 2001
Inventors
Roland Krafczyk
Ulrich Deschler
Rudolf Michel
Assignee (at issue)
Degussa 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.