The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 21, 2026
Filed:
Sep. 18, 2020
Applicant:
President and Fellows of Harvard College, Cambridge, MA (US);
Inventors:
Benjamin Ross Freedman, Brookline, MA (US);
David J. Mooney, Sudbury, MA (US);
Assignee:
President and Fellows of Harvard College, Cambridge, MA (US);
Primary Examiner:
Int. Cl.
CPC ...
A61L 24/00 (2006.01); A61L 24/02 (2006.01);
U.S. Cl.
CPC ...
A61L 24/0089 (2013.01); A61L 24/0015 (2013.01); A61L 24/0031 (2013.01); A61L 24/02 (2013.01); A61L 2300/222 (2013.01);
Abstract
Described herein are tough gel compositions that comprise an interpenetrating networks (IPN) hydrogel. The IPN hydrogel comprises a first polymer network (covalently crosslinked) and a second polymer network (ionically crosslinked), at least one therapeutic agent, and a clay material. The tough gel compositions may further include an adhesive polymer layer attached to the IPN hydrogel. Methods of use of these compositions, such as for extended release drug delivery, are also described.