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:
Jan. 16, 1990
Filed:
Mar. 03, 1988
Applicant:
Inventor:
Claudio Menicagli, Pisa, IT;
Assignee:
Istituto Gentili S.p.A., Pisa, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07K / ; C07G / ; A01N / ; B01D / ;
U.S. Cl.
CPC ...
530356 ; 530840 ; 530842 ; 424 942 ; 210636 ; 210650 ; 210651 ;
Abstract
A process for the preparation of undenaturated triple helix collagen, starting form animal tendons or cutis, by extraction with diluted organic acids, precipitation with salts, optional gelation and/or lyophilization, tangential filtration. The obtained collagen shows favorable purity characteristics, is not allergenic and more effective in the healing processes than collagens obtained by known methods.