Patents by Inventor Richard H. Hanauer

Richard H. Hanauer 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).

  • Thermally labile rust inhibitors
    Patent number: 4154958
    Abstract: A new class of thermally labile compounds having rust inhibiting properties is disclosed and claimed. The compounds (or formulations thereof) are especially useful as rust inhibitors when used either alone in distillate hydrocarbon fuels or in multi-purpose additive mixtures for distillate hydrocarbon fuels having a major proportion of hydrocarbon fuel distilling within the gasoline distillation range or other oil compositions to provide rust protection in fuel distribution systems which operate at ambient temperature (e.g., pipelines, tank trucks, and storage tanks). Preferred embodiments of the invention are alkylammonium carboxylate salt-ethoxylated alkyl phenol esters of a dicarboxylic acid.
    Type: Grant
    Filed: October 22, 1976
    Date of Patent: May 15, 1979
    Assignee: Rohm and Haas Company
    Inventors: Joseph M. Bollinger, Richard H. Hanauer, Warren H. Machleder
  • Polymeric antioxidant viscosity index improvers
    Patent number: 4098709
    Abstract: Polymers containing post-reacted hindered phenol anti-oxidant functionality as viscosity index (VI) improvers for high temperature service, particularly for lubricating oils used in diesel engines.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: July 4, 1978
    Assignee: Rohm and Haas Company
    Inventors: Richard H. Hanauer, Gordon L. Willette
  • Polymers containing anti-oxidant functionality
    Patent number: 4096319
    Abstract: Polymers containing anti-oxidant functionality have been found to be useful as viscosity index (VI) improvers for high temperature service. The anti-oxidant moiety prevents extensive oxidative decomposition of the polymer making the polymers particularly useful with lubricating oils used in diesel engines.
    Type: Grant
    Filed: December 11, 1975
    Date of Patent: June 20, 1978
    Assignee: Rohm and Haas Company
    Inventors: Gordon L. Willette, Richard H. Hanauer
  • Thermally labile rust inhibitors
    Patent number: 4010007
    Abstract: A new class of thermally labile compounds having rust inhibiting properties is disclosed and claimed. The compounds (or formulations thereof) are especially useful as rust inhibitors when used either alone or in multi-purpose additive mixture for distillate hydrocarbon fuels having a major proportion of hydrocarbon fuel distilling within the gasoline distillation range or other oil compositions to provide rust protection in fuel distribution systems which operate at ambient temperature (e.g., pipelines, tank trucks, and storage tanks). Preferred embodiments of the invention are alkylammonium carboxylate salt-ethoxylated alkyl phenol esters of a dicarboxylic acid.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: March 1, 1977
    Assignee: Rohm and Haas Company
    Inventors: Joseph M. Bollinger, Richard H. Hanauer, Warren H. Machleder
  • Antioxidant-containing viscosity index improvers for high temperature service
    Patent number: 3951831
    Abstract: Antioxidant-containing viscosity index (VI) improvers for high temperature service are disclosed and claimed. These viscosity index improvers are particularly useful at high temperature. Therefore, they are particularly useful with lubricating oils used in diesel engines.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: April 20, 1976
    Assignee: Rohm and Haas Company
    Inventors: Gordon L. Willette, Richard H. Hanauer