Patents by Inventor James M. Horn

James M. Horn 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).

  • Solvent and catalyst recovery and recycle in the manufacture of phenoxybenzoic acid derivatives
    Patent number: 4503245
    Abstract: An improved process is provided for recovering and recycling reaction medium solvent and cobalt-containing cocatalyst in the oxidation of 3-(substituted phenoxy) toluene to provide the corresponding 3-(substituted phenoxy) benzoic acid, the latter being a useful intermediate in the manufacture of herbicides such as acifluorfen.
    Type: Grant
    Filed: November 3, 1983
    Date of Patent: March 5, 1985
    Assignee: Rhone-Poulenc, Inc.
    Inventors: Thomas J. Giacobbe, Thomas N. Williams, Jr., James M. Horn
  • Solvent and catalyst recovery and recycle in the manufacture of phenoxybenzoic acid
    Patent number: 4456767
    Abstract: An improved process is provided for recovering and recycling reaction medium solvent and cobalt-containing cocatalyst in the oxidation of 3-(substituted phenoxy) toluene to provide the corresponding 3-(substituted phenoxy) benzoic acid, the latter being a useful intermediate in the manufacture of herbicides such as acifluorfen.
    Type: Grant
    Filed: August 2, 1983
    Date of Patent: June 26, 1984
    Assignee: Rhone-Poulenc, Inc.
    Inventors: Thomas J. Giacobbe, Thomas N. Williams, Jr., James M. Horn
  • Process for the preparation of dialkyl phosphoric acids
    Patent number: 4288392
    Abstract: This application is directed to a process for preparing dialkyl phosphoric acid, preferably di(2-ethylhexyl) phosphoric acid. This latter material is used in uranium extraction from wet-process phosphoric acid as a kerosine solution along with a synergist, trioctylphosphine oxide.
    Type: Grant
    Filed: January 3, 1980
    Date of Patent: September 8, 1981
    Assignee: Mobil Oil Corporation
    Inventors: James M. Horn, Byron E. Johnston, Roger P. Napier, Thomas N. Williams