Patents by Inventor Robert Dittmeier

Robert Dittmeier 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).

  • Novel additives for lubricants and fuels
    Publication number: 20050202980
    Abstract: A multi-functional composition for use as an additive for fuels and lubricants. The composition includes an amination product of a hydrocarbyl substituted succinic acylating agent and a mixture containing an aliphatic polyamine and an aromatic polyamine. The molar ratio of aliphatic polyamine to aromatic polyamine in the mixture ranges from about 10:0.1 to about 0.1:10. The amination product contains at least about 0.1 molar equivalent of the polyamine mixture to 1 molar equivalent of the hydrocarbyl substituted succinic acylating agent.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 15, 2005
    Inventors: John Loper, Paul Griffin, David Hutchison, Robert Dittmeier