Granted Patent
Utility
US 5,158,881 · App. 07/461,999
Method and system for encapsulating cells in a tubular extrudate in separate cell compartments
Inventors:
Patrick Aebischer, Lars Ulrik Wahlberg
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Jan 8, 1990
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.