Patents by Inventor Elieth W. Harris

Elieth W. Harris 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).

  • Use of vinylamine polymers with ionic, organic, cross-linked polymeric microbeads in paper-making
    Publication number: 20030192664
    Abstract: A method for making paper is disclosed. The method comprising adding to a furnish comprising cellulosic, paper-making fibers (i) from about 0.05 to about 20 pounds per ton, based upon the dry weight of the furnish solids, of an ionic, organic, crosslinked polymeric microbead with a diameter of less than about 500 nm, and (ii) from about 0.05 to about 20 pounds per ton, same basis, of a polymeric material, containing vinylamine recurring units. In addition to the compositions described above, additives such as organic ionic, polysaccharides (e.g., a starch), may also be combined with the liquid system to facilitate drainage and retention.
    Type: Application
    Filed: June 19, 2003
    Publication date: October 16, 2003
    Inventors: Russell J. Kulick, Elieth W. Harris, Dan S. Honig
  • Cross-linked anionic and amphoteric polymeric microparticles
    Patent number: 5171808
    Abstract: Novel compositions comprising anionic and/or amphoteric organic polymeric microparticles are disclosed, along with a method for their production. The products are useful in flocculating a wide variety of dispersions of suspended solids and in paper-making.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: December 15, 1992
    Assignee: American Cyanamid Company
    Inventors: Roderick G. Ryles, Dan S. Honig, Elieth W. Harris, Roger E. Neff