Patents by Inventor Anthony L. Tosoni

Anthony L. Tosoni 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).

  • Dextran hexonic acid derivative, ferric hydroxide complex and method manufacture thereof
    Patent number: 4788281
    Abstract: A novel hexonic acid derivative of dextran and a complex thereof with ferric hydroxide which complex is stable and non-toxic and has a high iron content are obtained under carefully controlled conditions by reacting dextran having a molecular weight range between 2000 and 6000 with sodium chlorite; and then reacting with ferric hydroxide to produce the desired complex.
    Type: Grant
    Filed: January 4, 1984
    Date of Patent: November 29, 1988
    Inventors: Anthony L. Tosoni, Natu Patel, Kenneth Coelho
  • Process for the separation and purification of dextranase
    Patent number: 4490470
    Abstract: This invention relates to a novel process for the separation, purification and recovery of dextranase from impure solutions such as fermentation broth by precipitating a complex of dextranase with tannic acid and thereafter separating the purified dextranase from the tannic acid.
    Type: Grant
    Filed: January 3, 1983
    Date of Patent: December 25, 1984
    Assignee: Polydex Chemicals Ltd.
    Inventor: Anthony L. Tosoni