Patents by Inventor Daniel Llauro

Daniel Llauro 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).

  • Additives for improving the dispersing properties of lubricating oil
    Patent number: 3936480
    Abstract: New lubricating oil additives are provided comprising the reaction product of a hydroxy compound, such as an alcohol or hydroxyaromatic compound, with an aliphatic chain substituted-carboxylic anhydride, acid, chloride, or ester, which aliphatic chain substituent is substantially saturated and contains at least about 30 carbon atoms, said reaction product being neutralized with an ashless basic compound, so that the final product or additive contains at least about 0.9%, up to about 2.5%, by weight of nitrogen. Lubricating oils, fuel oils, and carburants containing the new additives have excellent detergent, dispersing and anti-rust properties.
    Type: Grant
    Filed: November 16, 1972
    Date of Patent: February 3, 1976
    Assignee: Rhone-Progil
    Inventors: Bernard Demoures, Daniel Llauro, Francois Giolito