Patents by Inventor Mitchell ROTHE

Mitchell ROTHE 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).

  • Reverse circulation hybrid bit
    Patent number: 11428050
    Abstract: A hybrid rotary drill bit having at least one fixed blade and at least one rolling cutter assembly is configured for reverse fluid flow from an annulus, through junk slots and into a fluid pathway system located substantially centrally to a bit body. The fluid pathway system may be located underneath a portion of the at least one fixed blade.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: August 30, 2022
    Assignee: Baker Hughes Holdings LLC
    Inventor: Mitchell Rothe
  • No blade bit
    Patent number: 10920497
    Abstract: A bladeless polycrystalline diamond compact (PDC) drill bit includes a head having a plurality of knots protruding from a drilling face of the head. Each of the plurality of knots includes a single cutter. Each of the cutters is arranged about a central axis of the head such that each cutter has a unique radial position and angular position relative to the central axis. The head defines at least one fluid port extending through the drilling surface.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: February 16, 2021
    Assignee: ULTERRA DRILLING TECHNOLOGIES, L.P.
    Inventors: Mitchell Rothe, Ben Chrest
  • HYBRID PDC BIT
    Publication number: 20210010330
    Abstract: A bladeless polycrystalline diamond compact (PDC) drill bit includes a head having a plurality of knots protruding from a drilling face of the head. Each of the plurality of knots includes a single cutter. Each of the cutters is arranged about a central axis of the head such that each cutter has a unique radial position and angular position relative to the central axis. The head defines at least one fluid port extending through the drilling surface.
    Type: Application
    Filed: July 9, 2019
    Publication date: January 14, 2021
    Applicant: Ulterra Drilling Technologies, L.P.
    Inventors: Mitchell Rothe, Ben Chrest
  • NO BLADE BIT
    Publication number: 20200217142
    Abstract: A bladeless polycrystalline diamond compact (PDC) drill bit includes a head having a plurality of knots protruding from a drilling face of the head. Each of the plurality of knots includes a single cutter. Each of the cutters is arranged about a central axis of the head such that each cutter has a unique radial position and angular position relative to the central axis. The head defines at least one fluid port extending through the drilling surface.
    Type: Application
    Filed: January 9, 2019
    Publication date: July 9, 2020
    Applicant: Ulterra Drilling Technologies, L.P.
    Inventors: Mitchell Rothe, Ben Chrest
  • REVERSE CIRCULATION HYBRID BIT
    Publication number: 20160108680
    Abstract: A hybrid rotary drill having at least one fixed blade and at least one rolling cutter assembly is configured for reverse fluid flow from the annulus, through junk slots and into a fluid pathway system located substantially centrally to the bit body. The fluid pathway system may be located underneath a portion of the at least one fixed blade.
    Type: Application
    Filed: October 20, 2015
    Publication date: April 21, 2016
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Mitchell ROTHE