Patents by Inventor Alexander S. Lang

Alexander S. Lang 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).

  • Methods of inhibiting precipitation of biodiesel fuel components
    Patent number: 9840678
    Abstract: Embodiments of the invention provide a method of inhibiting precipitation of biodiesel fuel components. The method includes providing a biodiesel fuel composition; providing a copolymer comprising at least first and second polymer units, said first polymer units derived from a carboxylic acid anhydride and said second polymer units derived from an olefin; and blending said copolymer with the biodiesel fuel to form a treated fuel composition. Alternatively, instead of the copolymer, a dialkylene glycol additive can be provided. Embodiments of the invention provide a method of reducing the cold soak filter blocking tendency of a biodiesel fuel composition.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: December 12, 2017
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Marc-Andre Poirier, Alexander S. Lang
  • METHODS OF INHIBITING PRECIPITATION OF BIODIESEL FUEL COMPONENTS
    Publication number: 20150184101
    Abstract: Embodiments of the invention provide a method of inhibiting precipitation of biodiesel fuel components. The method includes providing a biodiesel fuel composition; providing a copolymer comprising at least first and second polymer units, said first polymer units derived from a carboxylic acid anhydride and said second polymer units derived from an olefin; and blending said copolymer with the biodiesel fuel to form a treated fuel composition. Alternatively, instead of the copolymer, a dialkylene glycol additive can be provided. Embodiments of the invention provide a method of reducing the cold soak filter blocking tendency of a biodiesel fuel composition.
    Type: Application
    Filed: December 16, 2014
    Publication date: July 2, 2015
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Marc-Andre Poirier, Alexander S. Lang