Granted Patent
Utility
US 6,174,952 · App. 09/156,720
Monolithic polymer composition having a water absorption material
Inventors:
Ihab M. Hekal, Robert S. Langer, Alexander M. Klibanov, Edith Mathiowitz
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Sep 18, 1998
Inventors
Ihab M. Hekal
Robert S. Langer
Alexander M. Klibanov
Edith Mathiowitz
Assignee (at issue)
Capitol Specialty Plastics, 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.