Patents by Inventor Andrew R. Hess

Andrew R. Hess 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).

  • Lubricating oil compositions with engine wear protection and solubility
    Patent number: 9926509
    Abstract: A method for improving wear control in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that includes a lubricating oil base stock as a major component; and at least one phosphazene represented by the formula as a minor component. In the above formula, Q is nitrogen, sulfur or oxygen; a is a value from about 2 to about 6, c is a value from about 2 to about 6, e is a value from about 2 to about 6, g is a value from about 2 to about 6, i is a value from about 2 to about 6, and k is a value from about 2 to about 6; b is a value of 2a+q, d is a value of 2c+r, f is a value of 2e+s, h is a value of 2g+t, j is a value of 2i+u, and l is a value of 2k+v; q, r, s, t, u and v are independently a value of 0 or ?2; with the proviso that not all of a, c, e, g, i and k are the same value.
    Type: Grant
    Filed: January 18, 2016
    Date of Patent: March 27, 2018
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Alan M. Schilowitz, Man Kit Ng, David J. Baillargeon, Chen Chen, Harry R. Allcock, Andrew R. Hess
  • LUBRICATING OIL COMPOSITIONS WITH ENGINE WEAR PROTECTION AND SOLUBILITY
    Publication number: 20160208186
    Abstract: A method for improving wear control in an engine or other mechanical component lubricated with a lubricating oil by using as the lubricating oil a formulated oil. The formulated oil has a composition that includes a lubricating oil base stock as a major component; and at least one phosphazene represented by the formula as a minor component. In the above formula, Q is nitrogen, sulfur or oxygen; a is a value from about 2 to about 6, c is a value from about 2 to about 6, e is a value from about 2 to about 6, g is a value from about 2 to about 6, i is a value from about 2 to about 6, and k is a value from about 2 to about 6; b is a value of 2a+q, d is a value of 2c+r, f is a value of 2e+s, h is a value of 2g+t, j is a value of 2i+u, and l is a value of 2k+v; q, r, s, t, u and v are independently a value of 0 or ?2; with the proviso that not all of a, c, e, g, i and k are the same value.
    Type: Application
    Filed: January 18, 2016
    Publication date: July 21, 2016
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Alan M. Schilowitz, Man Kit Ng, David J. Baillargeon, Chen Chen, Harry R. Allcock, Andrew R. Hess