IP Library › Granted Patent US 5,922,298
Granted Patent Utility
US 5,922,298 · App. 08/909,042

Amorphous precipitated silica

Inventors: James L. Boyer, Thomas G. Krivak
Patented Case View Patent ↗
Granted: Jul 13, 1999 Filed: Aug 8, 1997
Inventors
James L. Boyer
Thomas G. Krivak
Assignee (at issue)
PPG Industries Ohio, Inc.

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Quick Facts
Patent No.
US 5,922,298
App. No.
08/909,042
Filed
1997-08-08
Granted
1999-07-13
Kind
A