Granted Patent
Utility
US 5,200,334 · App. 07/744,524
Sol-gel encapsulated enzyme
Inventors:
Bruce S. Dunn, Joan S. Valentine, Jeffrey I. Zink, Lisa M. Ellerby, Fumito Nishida, Clinton Nishida, Stacey A. Yamanaka
Patented Case
View Patent ↗
Granted: Apr 6, 1993
Filed: Aug 13, 1991
Inventors
Bruce S. Dunn
Joan S. Valentine
Jeffrey I. Zink
Lisa M. Ellerby
Fumito Nishida
Clinton Nishida
Stacey A. Yamanaka
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.