Patents by Inventor Jeffrey J. Doll

Jeffrey J. Doll 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).

  • Publication number: 20030116653
    Abstract: A fuel injector comprising a body and an injector tip is provided. The injector tip includes a barrel having a first end, a second end, an outer wall and a cavity extending from the first end toward the second end. An end portion is disposed at the second end, the end portion includes a sac portion and an end surface. A radius or chamfer is interposed the end surface and the outer wall. A plurality of nozzles are disposed in the sac portion at a predetermined angle and the end surface is defined substantially parallel to the plurality of nozzles.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventors: Jeffrey J. Doll, Sunil T. Kumar, Vladimir Theodorof
  • Key
    Patent number: D663606
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: July 17, 2012
    Assignee: Caterpillar Inc.
    Inventors: Jeffrey J. Doll, Troy A. Larsen, Anthony S. Cooksey, Craig B. Kelley
  • Key
    Patent number: D680418
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: April 23, 2013
    Assignee: Caterpillar Inc.
    Inventors: Jeffrey J. Doll, Troy A. Larsen, Anthony S. Cooksey, Craig B. Kelley