Patents by Inventor Robert P. Sterner

Robert P. Sterner 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).

  • Fly-ash slurry with solidification retardant
    Patent number: 6221001
    Abstract: A method using retardant to inhibit solidification of slurried fly ash particles that were collected on a collection surface. The slurried particles are transported in a pipeline to a collection or disposal site during or after the addition of the retardant to the slurry. The retardant can be a dispersant, a deflocculant, a scale inhibitor or a sequestering agent such as a phosphate, organic phosphate, polymer, and mixtures thereof.
    Type: Grant
    Filed: January 26, 1999
    Date of Patent: April 24, 2001
    Assignee: ADA Environmental Solutions LLC
    Inventors: John Philip Comer, Kenneth Eugene Baldrey, John Wurster, Robert P. Sterner