Patents by Inventor John Charles Mollenkopf

John Charles Mollenkopf 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).

  • Patent number: 10408377
    Abstract: Embodiments of the present disclosure include a pig ramp for receiving and supporting a pig in a pig receiver includes a frame portion having an inner diameter, the inner diameter of the ring being larger than an outer diameter of a pig. The pig ramp also includes one or more ramp segments extending longitudinally away from the frame portion, the one or more ramp segments being coupled to a back side of the frame portion at a lower portion and positioned to receive and support the pig when positioned thereon to elevate the pig above a bottom of a tubular.
    Type: Grant
    Filed: October 3, 2018
    Date of Patent: September 10, 2019
    Assignee: Markwest Energy Partners, L.P.
    Inventors: Danny Lee Dray, Bryan Anthony Crowe, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell
  • Patent number: 10197206
    Abstract: Embodiments of the present disclosure include a pig ramp for receiving and supporting a pig in a pig receiver includes a frame portion having an inner diameter, the inner diameter of the ring being larger than an outer diameter of a pig. The pig ramp also includes one or more ramp segments extending longitudinally away from the frame portion, the one or more ramp segments being coupled to a back side of the frame portion at a lower portion and positioned to receive and support the pig when positioned thereon to elevate the pig above a bottom of a tubular.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: February 5, 2019
    Assignee: MARKWEST ENERGY PARTNERS, L.P.
    Inventors: Danny Lee Dray, Bryan Anthony Crowe, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell
  • Patent number: 10094508
    Abstract: Embodiments of the present disclosure include a pig ramp for receiving and supporting a pig in a pig receiver includes a frame portion having an inner diameter, the inner diameter of the ring being larger than an outer diameter of a pig. The pig ramp also includes one or more ramp segments extending longitudinally away from the frame portion, the one or more ramp segments being coupled to a back side of the frame portion at a lower portion and positioned to receive and support the pig when positioned thereon to elevate the pig above a bottom of a tubular.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: October 9, 2018
    Assignee: MarkWest Energy Partners, L.P.
    Inventors: Danny Lee Dray, Bryan Anthony Crowe, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell
  • Patent number: 10012340
    Abstract: Embodiments of the present disclosure include a pig ramp for receiving and supporting a pig in a pig receiver includes a frame portion having an inner diameter, the inner diameter of the ring being larger than an outer diameter of a pig. The pig ramp also includes one or more ramp segments extending longitudinally away from the frame portion, the one or more ramp segments being coupled to a back side of the frame portion at a lower portion and positioned to receive and support the pig when positioned thereon to elevate the pig above a bottom of a tubular.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: July 3, 2018
    Assignee: MarkWest Energy Partners, L.P.
    Inventors: Danny Lee Dray, Bryan Anthony Crowe, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell
  • Patent number: 10001240
    Abstract: Embodiments of the present disclosure include a pig ramp for receiving and supporting a pig in a pig receiver includes a frame portion having an inner diameter, the inner diameter of the ring being larger than an outer diameter of a pig. The pig ramp also includes one or more ramp segments extending longitudinally away from the frame portion, the one or more ramp segments being coupled to a back side of the frame portion at a lower portion and positioned to receive and support the pig when positioned thereon to elevate the pig above a bottom of a tubular.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: June 19, 2018
    Assignee: MARKWEST ENERGY PARTNERS, L.P.
    Inventors: Danny Lee Dray, Bryan Anthony Crowe, David Abraham Fitch, William Lee Sprowls, John Charles Mollenkopf, Dustin Michael Howell