Granted Patent
Utility
US 6,319,980 · App. 09/421,082
Method for preparing organic silicon compound emulsion
Inventors:
Hiroki Ishikawa, Atsushi Sakuma, Tsutomu Naganawa, Naohiro Muramoto, Isao Ona
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Oct 19, 1999
Inventors
Hiroki Ishikawa
Atsushi Sakuma
Tsutomu Naganawa
Naohiro Muramoto
Isao Ona
Assignee (at issue)
Dow Corning Toray Silicone Company, Ltd.
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.