Granted Patent
Utility
US 5,283,187 · App. 07/638,759
Cell culture-containing tubular capsule produced by co-extrusion
Inventors:
Patrick Aebischer, Lars Ulrik Wahlberg
Patented Case
View Patent ↗
Granted: Feb 1, 1994
Filed: Jan 8, 1991
Inventors
Patrick Aebischer
Lars Ulrik Wahlberg
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.