Patents by Inventor James F. Stadler

James F. Stadler 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).

  • Water resistant grease composition
    Patent number: 5110490
    Abstract: A grease composition having improved water resistance is disclosed. More specifically, the addition of an ethylene copolymer having an amine functionality to a base grease comprising a lubricating oil and a water insoluble thickener results in a grease composition which has enhanced water resistance relative to a grease containing an ethylene copolymer without amine functionality.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: May 5, 1992
    Assignee: Exxon Research and Engineering Company
    Inventors: Harry S. Pink, Timothy Hutchings, James F. Stadler
  • Water resistant grease composition
    Patent number: 5110489
    Abstract: A grease composition having impoved water resistance is disclosed. More specifically, the addition of a copolymer of ethylene and at least one other alpha-olefin monomer and an ethylene copolymer having an amine functionality to a base grease comprising a lubricating oil and a water insoluble thickener results in a grease composition which has excellent water resistance. In a preferred embodiment, polyisoprene is added to obtain a further improvement in water resistance.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: May 5, 1992
    Assignee: Exxon Research and Engineering Company
    Inventors: James F. Stadler, David L. Kufen, James L. Purvis
  • Process for preparing lithium soap greases containing borate salt with high dropping point
    Patent number: 4376060
    Abstract: This invention relates to a process of preparing a high dropping point grease comprising a combination of a selected lithium soap of hydroxy fatty acid and a lithium salt of boric acid wherein said lithium salt of boric acid is formed in situ in the presence of an additive amount of selected water soluble polyhydroxy compound.
    Type: Grant
    Filed: November 4, 1981
    Date of Patent: March 8, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventor: James F. Stadler