Patents by Inventor Dean A. Berman

Dean A. Berman 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).

  • HEMOSTATIC AGENTS AND METHODS OF USE
    Publication number: 20140378413
    Abstract: Modified chitosan hemostatic agents include reverse micelles (10) having an outer hydrophobic shell (12) of suitable biocompatible hydrophobic components such as alkanes, and hydrophilic positively charged chitosan moieties (14) enclosed within the hydrophobic shell (12). The hydrophobic shell (12) may be formed by attaching hydrophobic moieties to one end of chitosan polymer molecules while retaining sufficient reactive (positively charged) amine groups on the remainder of the chitosan polymers for effective blood clotting. The resulting reverse micelles (10) have the capability of penetrating mucous membranes such as nasal mucosa (20) or otherwise penetrating to bleed sites shielded or partially shielded by mucosa or other tissues.
    Type: Application
    Filed: September 5, 2014
    Publication date: December 25, 2014
    Inventors: Dean A. Berman, Joseph Bristow
  • HEMOSTATIC AGENTS AND METHODS OF USE
    Publication number: 20140336147
    Abstract: Modified chitosan hemostatic agents include reverse micelles (10) having an outer hydrophobic shell (12) of suitable biocompatible hydrophobic components such as alkanes, and hydrophilic positively charged chitosan moieties (14) enclosed within the hydrophobic shell (12). The hydrophobic shell (12) may be formed by attaching hydrophobic moieties to one end of chitosan polymer molecules while retaining sufficient reactive (positively charged) amine groups on the remainder of the chitosan polymers for effective blood clotting. The resulting reverse micelles (10) have the capability of penetrating mucous membranes such as nasal mucosa (20) or otherwise penetrating to bleed sites shielded or partially shielded by mucosa or other tissues.
    Type: Application
    Filed: December 12, 2012
    Publication date: November 13, 2014
    Inventors: Dean A. Berman, Joseph F. Bristow