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:
Nov. 01, 1983
Filed:
May. 26, 1982
Applicant:
Inventor:
Gheorghe Cioca, Coatesville, PA (US);
Assignee:
Seton Company, Newark, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07G / ; C08H / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
2601237 ; 106124 ; 106155 ; 604368 ; 128D / ; 424116 ; 424177 ;
Abstract
A process for preparing a coherent porous collagen sheet material is comprised of forming natural insoluble particulate collagen in substantially pure form and suspending the particulate collagen in a weak aqueous organic acid solution while maintaining the collagen in particulate form. The suspension is freeze-dried to form a coherent porous native collagen sheet material which is useful as a wound dressing, burn dressing, hemostatic sheet or the like.