Patents by Inventor Michael W. Edens

Michael W. Edens 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).

  • Esterified polyglycol lubricants for refrigeration compressors
    Patent number: 4959169
    Abstract: Refrigeration fluid compositions for compression refrigeration which have an upper solution critical temperature equal to or greater than about 35.degree. C. are composed of selected hydrochlorofluorocarbons and hydrofluorocarbons with esterified polyether polyols in which at least 30% of the hydroxyls are esterified. The esterified polyether polyols have a viscosity between 25 and 150 centistokes at 38.degree. C.
    Type: Grant
    Filed: October 20, 1989
    Date of Patent: September 25, 1990
    Assignee: The Dow Chemical Company
    Inventors: Philip W. McGraw, Eldon L. Ward, Michael W. Edens