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:
Mar. 02, 1999
Filed:
Nov. 26, 1996
Applicant:
Inventors:
Kent C Cochrum, Davis, CA (US);
Susan A Jemtrud, San Francisco, CA (US);
Assignee:
The Regents of the University of California, Oakland, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61F / ; A01N / ; C12N / ;
U.S. Cl.
CPC ...
424424 ; 264-41 ; 435182 ; 43524022 ; 435240241 ; 435240243 ; 623 11 ;
Abstract
A biological tissue transplant coated with a stabilized multilayer alginate coating and a method for preparation of the stabilized multilayer coating. Coating has three primary layers of the alginate with a polyamino acid barrier emplaced between a primary and a secondary layer. The secondary 'halo' layer of soft gel is formed by a gel gradient created between weakly bound cross-linking gelling divalent cations of an alginate used for the primary layer of the coating and non-gelling counter ions of a non-ionic alginate of the secondary layer of the coating.