Patents by Inventor Stephen Tomko

Stephen Tomko 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).

  • Process for making gel microbeads
    Patent number: 5662840
    Abstract: A process for making gel bead having a mean diameter of less than 50 microns by adiabatically atomizing a hydrocolloid sol to droplet of less than 50 microns under conditions that lower the temperature of the hydrocolloid below its gel temperature.
    Type: Grant
    Filed: June 10, 1994
    Date of Patent: September 2, 1997
    Assignee: FMC Corporation
    Inventors: William R. Thomas, Henry A. Pfeffer, Basil A. Guiliano, Christopher J. Sewall, Stephen Tomko
  • Peroxygen laundry bleach
    Patent number: 5194176
    Abstract: The invention provides a process to coat dry particles comprising sodium carbonate perhydrate to provide a stable dry particulate solid which releases hydrogen peroxide when contacted with an aqueous solution. The coated particles are readily soluble in water and/or stable when formulated into a solid detergent.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: March 16, 1993
    Assignee: FMC Corporation
    Inventors: William Copenhafer, Basil A. Guiliano, William A. Hills, Charles V. Juekle, Stephen Tomko