Patents by Inventor David Bartel

David Bartel 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: 11918860
    Abstract: A golf ball with improved durability is disclosed herein. The golf ball has a core comprising a polybutadiene material and methyl methacrylate, butadiene, styrene (MBS) with a weight percentage of MBS ranging from 0.5 to 5 weight percent of the core.
    Type: Grant
    Filed: March 16, 2023
    Date of Patent: March 5, 2024
    Assignee: Topgolf Callaway Brands Corp.
    Inventors: Armando Becerra, Carl Brown, David Bartels, Vijay Chavan
  • Patent number: 11865426
    Abstract: A golf ball comprising an electrical component is disclosed herein. The electrical component comprises an integrated circuit having a gyroscope, a magnetometer, and a BLUETOOTH low energy (BTLE) radio, and at least one battery. A body is composed of an epoxy material, and the body encompasses the electrical component.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: January 9, 2024
    Assignee: Topgolf Callaway Brands Corp.
    Inventors: Mario Raposo, David Bartels, Petra Petrich, Grady Crahan, Nick Lannes
  • Publication number: 20230293948
    Abstract: A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an inner core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an outer core comprising polybutadiene and graphene.
    Type: Application
    Filed: April 24, 2023
    Publication date: September 21, 2023
    Applicant: Topgolf Callaway Brands Corp.
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 11717727
    Abstract: A method for forming a golf ball with a graphene core disclosed herein. The method includes mixing a graphene masterbatch material with a polybutadiene material to form a core mixture, wherein the graphene masterbatch material comprises graphene in an amount from 0.1 to 80.0 weight percent of the graphene masterbatch material mixed with a carrier polymer in an amount from 99.9 to 20 weight percent of the graphene masterbatch material.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: August 8, 2023
    Assignee: Topgolf Callaway Brands Corp.
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 11633648
    Abstract: A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an inner core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an outer core comprising polybutadiene and graphene.
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: April 25, 2023
    Assignee: Topgolf Callaway Brands Corp.
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 11607588
    Abstract: A golf ball with improved durability is disclosed herein. The golf ball has a core comprising a polybutadiene material and methyl methacrylate, butadiene, styrene (MBS) with a weight percentage of MBS ranging from 0.5 to 5 weight percent of the core.
    Type: Grant
    Filed: August 30, 2022
    Date of Patent: March 21, 2023
    Assignee: Topgolf Callaway Brands Corp.
    Inventors: Armando Becerra, Carl Brown, David Bartels, Vijay Chavan
  • Patent number: 11571610
    Abstract: A method for forming a golf ball with a graphene core disclosed herein. The method includes mixing a graphene masterbatch material with a polybutadiene material to form a core mixture, wherein the graphene masterbatch material comprises graphene in an amount from 0.1 to 80.0 weight percent of the graphene masterbatch material mixed with a carrier polymer in an amount from 99.9 to 20 weight percent of the graphene masterbatch material.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: February 7, 2023
    Assignee: Topgolf Callaway Brands Corp.
    Inventors: Vijay Chavan, David Bartels
  • Publication number: 20220325584
    Abstract: A drive shaft assembly for use with downhole mud motors is capable of handling greater torque and thrust forces. The drive shaft assembly has an elongated central drive shaft, and at least one end housing optionally disposed at one or both ends of the central drive shaft. At least one end of the central drive shaft defines a rounded or partially-spherical outer end surface and a plurality of elongate protrusions or “keys” that extend radially outward from the exterior surface of the shaft. Each end housing has a concave interior surface defining a seat for receiving a rounded end surface of the central drive shaft, as well as a plurality of circumferentially spaced axial keyways adapted to receive and engage with the keys in mating relationship. The shaft and end assemblies cooperate to facilitate omnidirectional pivotal movement and the transfer of torque forces between the shaft and each of said end housings.
    Type: Application
    Filed: June 24, 2022
    Publication date: October 13, 2022
    Inventors: RISHI GURJAR, DAVID BARTELS
  • Patent number: 11433277
    Abstract: A golf ball with improved durability is disclosed herein. The golf ball has a core comprising a polybutadiene material and methyl methacrylate, butadiene, styrene (MBS) with a weight percentage of MBS ranging from 0.5 to 5 weight percent of the core.
    Type: Grant
    Filed: January 7, 2021
    Date of Patent: September 6, 2022
    Assignee: Callaway Golf Company
    Inventors: Armando Becerra, Carl Brown, David Bartels, Vijay Chavan
  • Patent number: 11371289
    Abstract: A drive shaft assembly for use with downhole mud motors is capable of handling greater torque and thrust forces. The drive shaft assembly has an elongated central drive shaft, and at least one end housing optionally disposed at one or both ends of the central drive shaft. At least one end of the central drive shaft defines a rounded or partially-spherical outer end surface and a plurality of elongate protrusions or “keys” that extend radially outward from the exterior surface of the shaft. Each end housing has a concave interior surface defining a seat for receiving a rounded end surface of the central drive shaft, as well as a plurality of circumferentially spaced axial keyways adapted to receive and engage with the keys in mating relationship. The shaft and end assemblies cooperate to facilitate omnidirectional pivotal movement and the transfer of torque forces between the shaft and each of said end housings.
    Type: Grant
    Filed: August 5, 2020
    Date of Patent: June 28, 2022
    Assignee: Wenzel Downhole Tools ULC
    Inventors: Rishi Gurjar, David Bartels
  • Patent number: 11344785
    Abstract: A golf ball comprising an electrical component is disclosed herein. The electrical component comprises an integrated circuit having a gyroscope, a magnetometer, and a BLUETOOTH low energy (BTLE) radio, and at least one battery. A body is composed of an epoxy material, and the body encompasses the electrical component.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: May 31, 2022
    Assignee: Callaway Golf Company
    Inventors: Mario Raposo, David Bartels, Petra Petrich, Grady Crahan, Nick Lannes
  • Publication number: 20220080266
    Abstract: A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an inner core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an outer core comprising polybutadiene and graphene.
    Type: Application
    Filed: November 22, 2021
    Publication date: March 17, 2022
    Applicant: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 11208653
    Abstract: Methods and compositions for increasing RNAi efficiency through single nucleotide mismatches.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: December 28, 2021
    Assignee: Whitehead Institute for Biomedical Research
    Inventors: Grace Chen, David Bartel, Hazel Sive
  • Patent number: 11179604
    Abstract: A golf ball with a core comprising polybutadiene and graphene is disclosed herein. The golf ball has a single core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an inner core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an outer core comprising polybutadiene and graphene.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: November 23, 2021
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: 11161014
    Abstract: A golf ball with a core comprising polybutadiene and graphene with an embedded IC is disclosed herein. The golf ball preferably has a single core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an inner core comprising polybutadiene and graphene. Alternatively, the golf ball has a dual core with an outer core comprising polybutadiene and graphene.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: November 2, 2021
    Assignee: Callaway Golf Company
    Inventors: Vincent Simonds, David Bartels, Vijay Chavan
  • Patent number: 11148012
    Abstract: A method for forming a golf ball with a graphene core disclosed herein. The method includes mixing a graphene masterbatch material with a polybutadiene material to form a core mixture, wherein the graphene masterbatch material comprises graphene in an amount from 0.1 to 80.0 weight percent of the graphene masterbatch material mixed with a carrier polymer in an amount from 99.9 to 20 weight percent of the graphene masterbatch material.
    Type: Grant
    Filed: November 5, 2020
    Date of Patent: October 19, 2021
    Assignee: Callaway Golf Company
    Inventors: Vijay Chavan, David Bartels
  • Patent number: D928258
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: August 17, 2021
    Assignee: Callaway Golf Company
    Inventors: Alan Hocknell, David Bartels, Petra Petrich
  • Patent number: D931390
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: September 21, 2021
    Assignee: Callaway Golf Company
    Inventors: David Bartels, Alan Hocknell, Petra Petrich
  • Patent number: D933145
    Type: Grant
    Filed: January 15, 2020
    Date of Patent: October 12, 2021
    Assignee: Callaway Golf Company
    Inventors: David Bartels, Alan Hocknell, Petra Petrich
  • Patent number: D944347
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: February 22, 2022
    Assignee: Callaway Golf Company
    Inventors: Alan Hocknell, David Bartels, Petra Petrich