Granted Patent
Utility
US 6,420,242 · App. 09/478,915
Separation of thin films from transparent substrates by selective optical processing
Inventors:
Nathan W. Cheung, Timothy D. Sands, William S. Wong
Patented Case
View Patent ↗
Granted: Jul 16, 2002
Filed: Jan 6, 2000
Inventors
Nathan W. Cheung
Timothy D. Sands
William S. Wong
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.