Patents by Inventor Karl W. Rose

Karl W. Rose 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).

  • Method for drilling out a plug using a hybrid rotary cone drill bit
    Patent number: 10538970
    Abstract: A method for drilling out a plug includes directing a hybrid rotary cone drill bit having a plurality of rotary cones into a borehole lined with a casing. A body of the plug is drilled out using milled teeth formed in the hybrid rotary cone drill bit. A slip of the plug is drilled out using cutter inserts secured into the rotary cone where the slip contacts the casing. The drilled out plug is directed up the borehole using a drilling fluid.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: January 21, 2020
    Assignee: VAREL INTERNATIONAL IND., L.P.
    Inventors: Kyle Nobile, Matthew Charles Stroever, David Michel Harrington, Karl W. Rose
  • HYBRID ROTARY CONE DRILL BIT
    Publication number: 20190063161
    Abstract: A hybrid rotary cone drill bit includes a plurality of legs. A bearing shaft extends from each leg, and a rotary cone is rotationally coupled to each bearing shaft. At least one rotary cone includes a nose row of cutting structures, an inner row of cutting structures, and a gage row of cutting structures. The nose row and the inner row of cutting structures are formed of milled teeth. The gage row of cutting structures is formed of cutter inserts.
    Type: Application
    Filed: October 25, 2018
    Publication date: February 28, 2019
    Inventors: KYLE NOBILE, MATTHEW CHARLES STROEVER, DAVID MICHEL HARRINGTON, KARL W. ROSE
  • Hybrid rotary cone drill bit
    Patent number: 9376866
    Abstract: A hybrid rotary cone drill bit includes a plurality of legs. A bearing shaft extends from each leg, and a rotary cone is rotationally coupled to each bearing shaft. At least one rotary cone includes a nose row of cutting structures, an inner row of cutting structures, and a gage row of cutting structures. The nose row and the inner row of cutting structures are formed of milled teeth. The gage row of cutting structures is formed of cutter inserts.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: June 28, 2016
    Assignee: VAREL INTERNATIONAL IND., L.P.
    Inventors: Kyle Nobile, Matt Stroever, David Michel Harrington, Karl W. Rose
  • METHOD FOR DRILLING OUT A PLUG USING A HYBRID ROTARY CONE DRILL BIT
    Publication number: 20160153241
    Abstract: A method for drilling out a plug includes directing a hybrid rotary cone drill bit having a plurality of rotary cones into a borehole lined with a casing. A body of the plug is drilled out using milled teeth formed in the hybrid rotary cone drill bit. A slip of the plug is drilled out using cutter inserts secured into the rotary cone where the slip contacts the casing. The drilled out plug is directed up the borehole using a drilling fluid.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Applicant: Varel International Ind., L.P.
    Inventors: Kyle Nobile, Matt Stroever, David Michel Harrington, Karl W. Rose
  • HYBRID ROTARY CONE DRILL BIT
    Publication number: 20150053422
    Abstract: A hybrid rotary cone drill bit includes a plurality of legs. A bearing shaft extends from each leg, and a rotary cone is rotationally coupled to each bearing shaft. At least one rotary cone includes a nose row of cutting structures, an inner row of cutting structures, and a gage row of cutting structures. The nose row and the inner row of cutting structures are formed of milled teeth. The gage row of cutting structures is formed of cutter inserts.
    Type: Application
    Filed: August 23, 2013
    Publication date: February 26, 2015
    Applicant: VAREL INTERNATIONAL IND., L.P.
    Inventors: Kyle Nobile, Matt Stroever, David Michel Harrington, Karl W. Rose