Patents by Inventor David W. Wilkening

David W. Wilkening 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).

  • Publication number: 20210077845
    Abstract: A forest fire retardant composition contains water and a retardant compound that includes a halide salt, a non-halide salt, a metal oxide, a metal hydroxide, or combinations thereof. The halide salt may be magnesium chloride, calcium chloride, or both. The magnesium chloride hydrate has a formula MgCl2(H2O)x, wherein x is at least one of x=1, 2, 4, 6, 8, or 12. The calcium chloride hydrate has a formula CaCl2(H2O)x, wherein x is at least one of 1, 2, 4, or 6. The composition may be in the form of a liquid concentrate or a final diluted product. The final diluted product is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.
    Type: Application
    Filed: November 25, 2020
    Publication date: March 18, 2021
    Applicant: FRS Group, LLC
    Inventors: Dennis Hulbert, Robert J. Burnham, Michael S. Schnarr, Gerald Geissler, David W. Wilkening, Joseph McLellan
  • Publication number: 20210009787
    Abstract: A forest fire retardant composition is substantially free of ammonium and includes an organophosphate derived from (i) a phosphorylation agent and (ii) an organic molecule comprising at least two hydroxyl groups. The organophosphate may contain at least one phosphate ester bonded to an organic molecule, wherein the organic molecule comprises at least one monomer unit of about 2 to 40 carbon atoms. Preferably, at least 90% of the functional groups of the organophosphate is a phosphate ester group. The composition may also include a salt, including magnesium salt and/or calcium salt. The anion in the salt may be hydroxide, carbonate or phosphate. The salt may be an anhydrous salt, a salt hydrate, or a combination of both. The composition is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 14, 2021
    Applicant: FRS Group, LLC
    Inventors: Dennis Hulbert, Robert J. Burnham, Michael S. Schnarr, Gerald Geissler, David W. Wilkening, Joseph McLellan
  • Publication number: 20200384299
    Abstract: A forest fire retardant composition contains water and a retardant compound that includes a halide salt, a non-halide salt, a metal oxide, a metal hydroxide, or combinations thereof. The halide salt may be magnesium chloride, calcium chloride, or both. The magnesium chloride hydrate has a formula MgCl2(H2O)x, wherein x is at least one of x=1, 2, 4, 6, 8, or 12. The calcium chloride hydrate has a formula CaCl2(H2O)x, wherein x is at least one of 1, 2, 4, or 6. The composition may be in the form of a liquid concentrate or a final diluted product. The final diluted product is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 10, 2020
    Inventors: Dennis Hulbert, Robert J. Burnham, Michael S. Schnarr, Gerald Geissler, David W. Wilkening, Joseph McLellan
  • Publication number: 20200384298
    Abstract: A forest fire retardant composition includes a retardant compound that includes at least one anhydrous salt and at least one hydrate salt. The anhydrous salt is magnesium chloride, calcium chloride, or both. The hydrate salt is magnesium chloride, calcium chloride, or both. The magnesium chloride hydrate has a formula MgCl2(H2O)x, wherein x is at least one of 1, 2, 4, 6, 8, or 12. The calcium chloride hydrate has a formula CaCl2)(H2O)x, wherein x is at least one of 1, 2, 4, or 6. The composition may be in the form of a dry concentrate, a liquid concentrate, or a final diluted product. The final diluted product is effective in suppressing, retarding, and controlling forest fires while exhibiting corrosion resistance and low toxicity.
    Type: Application
    Filed: June 5, 2020
    Publication date: December 10, 2020
    Inventors: Dennis Hulbert, Robert J. Burnham, Michael S. Schnarr, Gerald Geissler, David W. Wilkening, Joseph McLellan
  • Publication number: 20200369932
    Abstract: A deicer composition is disclosed. The deicer composition may comprise water, a metal chloride salt, and a biopolymer composition derived from wheat straw, alfalfa, or other cereal grain straws. The biopolymer composition may include inorganic material and a copolymer comprised of lignin and polysaccharides. The biopolymer composition may have an average molecular weight of between 3500 and 5500 Daltons. The metal chloride salt may be selected from magnesium chloride, calcium chloride, and sodium chloride.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 26, 2020
    Applicant: NW Straw Pulp, LLC
    Inventors: Keith C. Kuykendall, David W. Wilkening