Granted Patent
Utility
US 6,090,965 · App. 09/054,027
Removal of dissolved silicates from alcohol-silicon direct synthesis solvents
Inventors:
Kenrick M. Lewis, Hua Yu, Regina Nelson Eng
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Apr 2, 1998
Inventors
Kenrick M. Lewis
Hua Yu
Regina Nelson Eng
Assignee (at issue)
OSI Specialties, Inc.
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.