Patents by Inventor Kay Colapret

Kay Colapret 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).

  • Lubricating oil for a diesel powered engine and method of operating a diesel powered engine
    Patent number: 7199088
    Abstract: A lubricating oil composition useful for a diesel-powered engine is provided that reduces NOx emissions level produced from a diesel-powered engine. The lubricating oil comprises a base oil and at least one oil-dispersible source of HNCO such as isocyanates. A method of operating the diesel powered engine using the lubricating oil is also provided.
    Type: Grant
    Filed: June 24, 2003
    Date of Patent: April 3, 2007
    Assignee: Shell Oil Company
    Inventors: Raymond Edward Paggi, Joseph Michael Russo, Kay Colapret, James Robert Macias, Krishna Rangraj Kaushik
  • Lubricating oil for a diesel powered engine and method of operating a diesel powered engine
    Publication number: 20040005989
    Abstract: A lubricating oil composition useful for a diesel-powered engine is provided that reduces NOx emissions level produced from a diesel-powered engine. The lubricating oil comprises a base oil and at least one oil-dispersible source of HNCO such as isocyanates. A method of operating the diesel powered engine using the lubricating oil is also provided.
    Type: Application
    Filed: June 24, 2003
    Publication date: January 8, 2004
    Inventors: Raymond Edward Paggi, Joseph Michael Russo, Kay Colapret, James Robert Macias, Krishna Rangraj Kaushik