Patents by Inventor Stephen S. Heberling

Stephen S. Heberling 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).

  • Ion-exchange composition employing resin attachment to dispersant and method for forming the same
    Patent number: 5532279
    Abstract: In accordance with the present invention, an ion-exchange composition has been formed which comprises synthetic resin support particles, dispersant capable of suspending the support particles in an aqueous medium to inhibit or prevent agglomeration, and fine synthetic resin layering particles. In a preferred embodiment, the complex can be formed by contacting a suitable dispersant with monomer in an aqueous solution in which the monomer is insoluble. Under suitable conditions for suspension polymerization, the monomer will polymerize to form resin support particles having dispersant irreversibly attached to those particles. The dispersant is irreversibly attached to the synthetic resin support particles, either by covalent bonding or permanent physical entanglement. The dispersant is also attached to the fine layering particles, either by covalent bonding or electrostatic forces. The result is formation of a support particle-dispersant-layering particle complex.
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: July 2, 1996
    Assignee: Dionex Corporation
    Inventors: Victor B. Barretto, Stephen S. Heberling, Vernon E. Summerfelt, Christopher A. Pohl
  • Ion-exchange composition employing resin attachment to dispersant and method for forming the same
    Patent number: 5324752
    Abstract: In accordance with the present invention, an ion-exchange composition has been formed which comprises synthetic resin support particles, dispersant capable of suspending the support particles in an aqueous medium to inhibit or prevent agglomeration, and fine synthetic resin layering particles. In a preferred embodiment, the complex can be formed by contacting a suitable dispersant with monomer in an aqueous solution in which the monomer is insoluble. Under suitable conditions for suspension polymerization, the monomer will polymerize to form resin support particles having dispersant irreversibly attached to those particles. The dispersant is irreversibly attached to the synthetic resin support particles, either by covalent bonding or permanent physical entanglement. The dispersant is also attached to the fine layering particles, either by covalent bonding or electrostatic forces. The result is formation of a support particle-dispersant-layering particle complex.
    Type: Grant
    Filed: May 3, 1990
    Date of Patent: June 28, 1994
    Assignee: Dionex Corporation
    Inventors: Victor B. Barretto, Stephen S. Heberling, Vernon E. Summerfelt, Christopher A. Pohl