Granted Patent
Utility
US 6,652,822 · App. 09/860,016
Spherical boron nitride particles and method for preparing them
Inventors:
Jonathan Phillips, Seth Gleiman, Chun-Ku Chen
Patented Case
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Granted: Nov 25, 2003
Filed: May 17, 2001
Inventors
Jonathan Phillips
Seth Gleiman
Chun-Ku Chen
Assignee (at issue)
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
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.