Granted Patent
Utility
US 5,380,791 · App. 07/993,009
Method of producing sulfonated organosilicon compounds and coresponding aqueous solutions
Inventors:
Peter Panster, Arno Jaenes, Thomas Goebel
Patented Case
View Patent ↗
Granted: Jan 10, 1995
Filed: Dec 18, 1992
Inventors
Peter Panster
Arno Jaenes
Thomas Goebel
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.