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:
May. 13, 2003
Filed:
Jun. 16, 1999
Benny Johansson, Malmö, SE;
Bo Niklasson, Malmö, SE;
Noviscens AB, Tygelsjo, SE;
Abstract
A composition is described, which comprises a cationic, hydrophilic, amine containing cationic derivatives of native chitosan; bound to an anionic scavenger substance, which is either (a) selected from the group consisting of anionic ethylene amine compounds, tetraazacycloalkane-N,N,N,N-tetraacetic acids; and polymer derivatives of porphyrines, or, (b) in the case of use in an UV radiation absorbing formulation, an antiviral, antifungal or anti-inflammatory formulation, an endogenous compound wherein cationic derivatives of native chitosan are not covalently bound to DTPA or EDTA; the amount of EDTA exceeds 0.5 wight percent; and taurine and taurine derivatives are not present.