Granted Patent
Utility
US 5,700,902 · App. 08/508,178
Block copolymers
Inventors:
Lawrence F. Hancock, Alan Jay Kishbaugh, Marc E. Parham
Patented Case
View Patent ↗
Granted: Dec 23, 1997
Filed: Jul 27, 1995
Inventors
Lawrence F. Hancock
Alan Jay Kishbaugh
Marc E. Parham
Assignee (at issue)
Circe Biomedical, 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.