Patents by Inventor Andrea Francescangeli

Andrea Francescangeli has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Percarboxylated polysaccharides, and a process for their preparation
    Patent number: 7683038
    Abstract: The present invention relates to percarboxylated polysaccharide selected from the group consisting of gellan, carboxymethylcellulose, pectic acid, pectin and hyaluronic acid derivatives; the process for their preparation and their use in the pharmaceutical, biomedical, surgical and healthcare fields.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: March 23, 2010
    Assignee: Fidia Farmaceutici S.p.A.
    Inventors: Davide Bellini, Vittorio Crescenzi, Andrea Francescangeli
  • Cross-linked derivatives of hyaluronic acid
    Patent number: 7125860
    Abstract: The present invention describes a new class of cross-linked derivatives of partially N-deacetylated hyaluronic acid or derivatives thereof, comprising at least one repeating unit of formula (I) hereinafter depicted and a process for the preparation of said cross-linked derivatives, comprising a multicomponent condensation reaction involving the carboxy groups and the amino groups originating from a partial N-deacetylation of hyaluronic acid or derivatives, together with an aldeyde and an isocyanide. The derivatives thus obtained can be used, alone or in association with biologically and/or pharmacologically active substances, for the preparation of pharmaceutical compositions, biomaterials, surgical and healthcare articles, slow release systems and for the coating of biomedical objects.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: October 24, 2006
    Assignee: Fidia Farmaceutici S.p.A.
    Inventors: Davide Renier, Vittorio Crescenzi, Andrea Francescangeli
  • Percarboxylated polysaccharides, and a process for their preparation
    Publication number: 20030181689
    Abstract: The present invention relates to percarboxylated polysaccharide selected from the group consisting of gellan, carboxymethylcellulose, pectic acid, pectin and hyaluronic acid derivatives; the process for their preparation and their use in the pharmaceutical, biomedical, surgical and healthcare fields.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 25, 2003
    Inventors: Davide Bellini, Vittorio Crescenzi, Andrea Francescangeli