Patents by Inventor Debra A. Riggs

Debra A. Riggs 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).

  • Chemicals for oil spill cleanup
    Patent number: 8936728
    Abstract: The clean-up of crude oil is accomplished using an oil solubilizing agent from a class of onium halides to solubilize the oil in water. The oil solubilizing agent includes a quaternary phosphonium halide, a quaternary ammonium halide, or a ternary sulfonium halide. The onium halide also includes a hydrophobic hydrocarbon chain having from 10 to 24 carbon atoms, and can include both aromatic and aliphatic components.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: January 20, 2015
    Inventor: Debra A. Riggs
  • Chemicals for Oil Spill Cleanup
    Publication number: 20120048809
    Abstract: The clean-up of crude oil is accomplished using an oil solubilizing agent from a class of onium halides to solubilize the oil in water. The oil solubilizing agent includes a quaternary phosphonium halide, a quaternary ammonium halide, or a ternary sulfonium halide. The onium halide also includes a hydrophobic hydrocarbon chain having from 10 to 24 carbon atoms, and can include both aromatic and aliphatic components.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 1, 2012
    Inventors: Olen L. Riggs, JR., Debra A. Riggs