Patents by Inventor Arthur J. Kiehn

Arthur J. Kiehn 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).

  • Two-cycle engine lubricant composition comprising an ester copolymer and a diester
    Patent number: 6573224
    Abstract: Improved performance of two-cycle and four-cycle engines is achieved by adding to the oil or fuel of such engines a composition that contains a copolymer of an alpha-olefin and a dialkyl fumarate or maleate and/or a synthetic diester compound that has about 30 carbon atoms. For two-cycle engines, the composition preferably contains both chemicals, in addition to an octane booster such as methylcyclopentadienyl manganese tricarbonyl. For four-cycle engines, the composition contains at least one of the copolymer and diester, in addition to a molybdenum or bismuth salt, dimercapto 1,3,4-thiadiazole and sulfur-phosphorous EP and/or chlorinated paraffin. The composition can also act to improve gear and grease lubrication and provide improved lubricity to fuels.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: June 3, 2003
    Assignee: Bardahl Manufacturing Corporation
    Inventors: Hugh A. McNeil, Arthur J. Kiehn, Mark Eskridge
  • Engine, fuel, gear, and grease treatment compositions and methods related thereto
    Publication number: 20020042348
    Abstract: Improved performance of two-cycle and four-cycle engines is achieved by adding to the oil or fuel of such engines a composition that contains a copolymer of an alpha-olefin and a dialkyl fumarate or maleate and/or a synthetic diester compound that has about 30 carbon atoms. For two-cycle engines, the composition preferably contains both chemicals, in addition to an octane booster such as methylcyclopentadienyl manganese tricarbonyl. For four-cycle engines, the composition contains at least one of the copolymer and diester, in addition to a molybdenum or bismuth salt, dimercapto 1,3,4-thiadiazole and sulfur-phosphorous EP and/or chlorinated paraffin. The composition can also act to improve gear and grease lubrication and provide improved lubricity to fuels.
    Type: Application
    Filed: August 10, 2001
    Publication date: April 11, 2002
    Inventors: Hugh A. McNeil, Arthur J. Kiehn, Mark Eskridge
  • Siloxane polymer compositions
    Patent number: 5470504
    Abstract: There is disclosed a composition containing a siloxane polymer for cleaning, polishing and lubricating surfaces. In addition to the siloxane polymer, the composition further contains a surface bonding enhancer, a lower alkyl alcohol, and a citrus extract. In further embodiments, the siloxane polymer composition may also contain a corrosion inhibitor and/or an anti-wearing agent. The siloxane polymer of this invention is a low viscosity siloxane polymer or a mixture of a low and high viscosity siloxane polymer. In a preferred embodiment, the citrus extract is d-limonene.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: November 28, 1995
    Assignee: Bardahl Manufacturing Corporation
    Inventors: Arthur J. Kiehn, Mark H. Eskridge