Patents by Inventor Andrea T. Noble

Andrea T. Noble 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).

  • Secondary amine mannich detergents
    Patent number: 6800103
    Abstract: New, highly effective detergent/dispersants for use in spark-ignition fuels comprising Mannich condensation products formed from (i) at least one substituted hydroxyaromatic compound having on the ring both (a) an aliphatic hydrocarbyl substituent derived from a polyolefin having a number average molecular weight in the range of about 500 to about 3000, and (b) a C1-4 (ii) at least one secondary amine; and (iii) at least one aldehyde are described. Carrier such as ploy(oxyalkylene) compounds further enhance the effectiveness of these Mannich condensation products in minimizing or reducing intake valve deposits and/or intake valve sticking.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: October 5, 2004
    Assignee: Ethyl Corporation
    Inventors: Dennis J. Malfer, Andrea T. Noble, William J. Colucci, Roger M. Sheets
  • Secondary amine mannich detergents
    Publication number: 20020134006
    Abstract: New, highly effective detergent/dispersants for use in spark-ignition fuels comprising Mannich condensation products formed from (i) at least one substituted hydroxyaromatic compound having on the ring both (a) an aliphatic hydrocarbyl substituent derived from a polyolefin having a number average molecular weight in the range of about 500 to about 3000, and (b) a C1-4 (ii) at least one secondary amine; and (iii) at least one aldehyde are described. Carrier such as ploy(oxyalkylene) compounds further enhance the effectiveness of these Mannich condensation products in minimizing or reducing intake valve deposits and/or intake valve sticking.
    Type: Application
    Filed: February 2, 2001
    Publication date: September 26, 2002
    Inventors: Dennis J. Malfer, Andrea T. Noble, William J. Colucci, Roger M. Sheets