Granted Patent
Utility
US 5,453,368 · App. 08/113,778
Method of encapsulating biological substances in microspheres
Inventors:
Patrick A. Tresco, John Mills
Patented Case
View Patent ↗
Granted: Sep 26, 1995
Filed: Aug 27, 1993
Inventors
Patrick A. Tresco
John Mills
Assignee (at issue)
Brown University Research Foundation
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.