Patents Assigned to VISCOGEL AB
  • Chitosan composition
    Patent number: 9555120
    Abstract: This invention provides a composition comprising: (i) a chitosan hydrogel comprising cross-linked chitosan and water; and (ii) a liquid dispersed in the hydrogel.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: January 31, 2017
    Assignee: VISCOGEL AB
    Inventor: Mats Andersson
  • Chitosan composition
    Patent number: 8703924
    Abstract: This invention relates to a cross-linkable chitosan composition comprising chitosan having a degree of deacetylation between 30 and 75%, wherein the chitosan is randomly deacetylated, and a cross-linking agent, wherein the molar ratio of the cross-linking agent to chitosan is 0.2:1 or less based on the number of functional groups in the cross-linking agent and the number of accessible amino groups in the chitosan. The invention also provides a chitosan hydrogel formed therefrom and uses thereof.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: April 22, 2014
    Assignee: Viscogel, AB
    Inventor: Mats Andersson
  • CHITOSAN COMPOSITION
    Publication number: 20130184356
    Abstract: This invention provides a composition comprising: (i) a chitosan hydrogel comprising cross-linked chitosan and water; and (ii) a liquid dispersed in the hydrogel.
    Type: Application
    Filed: April 15, 2011
    Publication date: July 18, 2013
    Applicant: VISCOGEL AB
    Inventor: Mats Andersson