Granted Patent
Utility
US 6,787,603 · App. 10/306,012
Method of making emulsion containing quaternary ammonium functional silanes and siloxanes
Inventors:
Bethany K. Johnson, Zuchen Lin
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Nov 27, 2002
Inventors
Bethany K. Johnson
Zuchen Lin
Assignee (at issue)
Dow Corning Corporation
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.