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. 24, 2018
Filed:
Feb. 07, 2012
Applicants:
Hyun-su Lee, Wayne, PA (US);
Russell Composto, Philadelphia, PA (US);
David M. Eckmann, Wynnewood, PA (US);
Noreen J. Hickok, Philadelphia, PA (US);
Inventors:
Hyun-Su Lee, Wayne, PA (US);
Russell Composto, Philadelphia, PA (US);
David M. Eckmann, Wynnewood, PA (US);
Noreen J. Hickok, Philadelphia, PA (US);
Assignees:
THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA, Philadelphia, PA (US);
THOMAS JEFFERSON UNIVERSITY, Philadelphia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
A61L 29/08 (2006.01); A61L 31/10 (2006.01); B29C 47/00 (2006.01); B29C 49/00 (2006.01); B29C 51/00 (2006.01);
U.S. Cl.
CPC ...
A61L 29/085 (2013.01); A61L 31/10 (2013.01); B29C 47/0004 (2013.01); B29C 47/0021 (2013.01); B29C 49/0005 (2013.01); B29C 51/002 (2013.01);
Abstract
The invention relates to a multifunctional chitosan grafted surface. Specifically, the invention relates to a chitosan modified with a quaternary ammonium salt (CH-Q) grafted surface that provides various functional properties, including stability (pH 3-9) and unique pH dependent swelling and antibacterial properties.