Patents by Inventor Harvey L. Paige

Harvey L. Paige 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).

  • Perfluoropolyalkylether lubricant formulation with improved stability
    Patent number: 6326337
    Abstract: An oxidation-corrosion additive for enhancing the stability of PFPAEs which has the formula: wherein Q is —Rf or —S—Rf, Rf is a perfluoroalkyl or perfluoroalkylether group having 1 to 30 carbon atoms, x and y are integers, each having a value of 0-5, wherein the sum of x and y is in the range of 1 to 10. In the formula above, Rf may be linear or branched. The additive can be a single component or a mixture of components varying in the number and relative positions of x and y. The additive can be used alone or with other suitable additives in PFPAE base fluids.
    Type: Grant
    Filed: April 4, 2001
    Date of Patent: December 4, 2001
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Kalathil C. Eapen, Grace J. Chen, Wayne E. Ward, Harvey L. Paige