Patents by Inventor Lee Michael Howard

Lee Michael Howard 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).

  • Method of increasing hydrolytic stability of magnesium overbased products
    Patent number: 7951758
    Abstract: The hydrolytic stability of magnesium overbased products is significantly improved by the addition or inclusion of a mixture or reaction product of an alkylphenol resin with a mixture of an alkenyl succinic anhydride and the acid thereof, and an alkyl amine. These magnesium overbased products are useful additives to fuel oils to improve their corrosion-causing tendencies. In one non-limiting embodiment, the alkylphenol resin is nonylphenol resin and the succinic anhydride is a partially hydrolyzed succinic anhydride having from 14 to 26 carbon atoms, along with the acid thereof. The mixtures and reaction products also serve as asphaltene inhibitors in the fuel oils.
    Type: Grant
    Filed: June 17, 2008
    Date of Patent: May 31, 2011
    Assignee: Baker Hughes Incorporated
    Inventors: Corina L. Sandu, Lawrence N. Kremer, Christine Ann Blundell, Lee Michael Howard, Joseph L. Stark
  • Method of Increasing Hydrolytic Stability of Magnesium Overbased Products
    Publication number: 20080318816
    Abstract: The hydrolytic stability of magnesium overbased products is significantly improved by the addition or inclusion of a mixture or reaction product of an alkylphenol resin with a mixture of an alkenyl succinic anhydride and the acid thereof, and an alkyl amine. These magnesium overbased products are useful additives to fuel oils to improve their corrosion-causing tendencies. In one non-limiting embodiment, the alkylphenol resin is nonylphenol resin and the succinic anhydride is a partially hydrolyzed succinic anhydride having from 14 to 26 carbon atoms, along with the acid thereof. The mixtures and reaction products also serve as asphaltene inhibitors in the fuel oils.
    Type: Application
    Filed: June 17, 2008
    Publication date: December 25, 2008
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Corina L. Sandu, Lawrence N. Kremer, Christine Ann Blundell, Lee Michael Howard, Joseph L. Stark