Granted Patent
Utility
US 6,528,604 · App. 09/645,934
Reactive silica particles, process for manufacturing the same, use of the same
Inventors:
Yuichi Eriyama, Atsushi Baba, Takashi Ukachi
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Aug 25, 2000
Inventors
Yuichi Eriyama
Atsushi Baba
Takashi Ukachi
Assignees (at issue)
DSM N.V.
JSR CORPORATION
Japan Fine Coatings Co., 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.