Granted Patent
Utility
US 5,942,590 · App. 09/022,282
Process for making hydrophobic silica with reduced surface area under neutral conditions
Inventors:
Gary T. Burns, Qin Deng, James Richard Hahn, Clifford Carlton Reese
Patented Case
View Patent ↗
Granted: Aug 24, 1999
Filed: Feb 11, 1998
Inventors
Gary T. Burns
Qin Deng
James Richard Hahn
Clifford Carlton Reese
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.