Patents by Inventor Roberto De Martino

Roberto De Martino 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).

  • Method for precoating a filter with a mixture of anion and cation exchange resin particles
    Patent number: 4007301
    Abstract: An improved method for precoating a filter with a mixture of anion and cation exchange resin particles in the size range of about 60 to 400 mesh is provided, wherein a floc of anion and cation exchange resins is formed by mixing these resins in aqueous suspension at elevated temperatures in the range of about 100.degree. to 212.degree. F. and coating these resins onto a filter.
    Type: Grant
    Filed: July 29, 1974
    Date of Patent: February 8, 1977
    Assignee: Ecodyne Corporation
    Inventor: Roberto De Martino