Patents by Inventor Mark Pellerin

Mark Pellerin 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: 20130175050
    Abstract: The present application describes methods and apparatuses for reducing stick-slip in drilling operations. An example apparatus may include a cylindrical tool body and a first roller disposed on an outer surface of the cylindrical tool body at a first location. The first roller may be at least partially disposed within a first cavity at the first location. The apparatus may also include a second roller disposed on the outer surface of the cylindrical tool body at a second location. The second location may be offset laterally and circumferentially from the first location on the cylindrical tool body. The second roller may be at least partially disposed within a second cavity at the second location.
    Type: Application
    Filed: January 4, 2013
    Publication date: July 11, 2013
    Inventors: Thomas Yu Song Wong, Sia Hsiao En, Nicholas Mark Pellerin
  • Patent number: 7090943
    Abstract: A technique includes providing power to a group fuel cell system components and providing sensors to monitor conditions of the fuel cell system. The status of each sensor is associated with a switch, and the switches are serially coupled together. The delivery of power to the fuel cell system components is regulated in response to states of the switches.
    Type: Grant
    Filed: January 23, 2003
    Date of Patent: August 15, 2006
    Assignee: Plug Power Inc.
    Inventors: John Meredith, Mark Pellerin, Dustan L. Skidmore
  • Publication number: 20040146755
    Abstract: A technique includes providing power to a group fuel cell system components and providing sensors to monitor conditions of the fuel cell system. The status of each sensor is associated with a switch, and the switches are serially coupled together. The delivery of power to the fuel cell system components is regulated in response to states of the switches.
    Type: Application
    Filed: January 23, 2003
    Publication date: July 29, 2004
    Inventors: Jon Meredith, Mark Pellerin, Dustan L. Skidmore
  • Patent number: D391795
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: March 10, 1998
    Inventor: Mark Pellerin