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John HAMMARGREN

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  • Sandviken, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thread pitch
    • Patent number 12,286,842
    • Issue date Apr 29, 2025
    • Sandvik Mining and Construction Tools AB
    • John Hammargren
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shoulder protected drilling assembly
    • Patent number 12,098,599
    • Issue date Sep 24, 2024
    • Sandvik Mining and Construction Tools AB
    • John Hammargren
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Carved out drill bit
    • Patent number 12,054,991
    • Issue date Aug 6, 2024
    • SANDVIK MINING AND CONSTRUCTIN TOOLS AB
    • John Hammargren
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Drill bit
    • Patent number 12,000,213
    • Issue date Jun 4, 2024
    • Sandvik Mining and Construction Tools AB
    • John Hammargren
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    THREAD PITCH
    • Publication number 20240426179
    • Publication date Dec 26, 2024
    • SANDVIK MINING AND CONSTRUCTION TOOLS AB
    • John HAMMARGREN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    SHOULDER PROTECTED DRILLING ASSEMBLY
    • Publication number 20240117687
    • Publication date Apr 11, 2024
    • SANDVIK MINING AND CONSTRUCTION TOOLS AB
    • John HAMMARGREN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    CARVED OUT DRILL BIT
    • Publication number 20240011355
    • Publication date Jan 11, 2024
    • SANDVIK MINING AND CONSTRUTION TOOLS AB
    • John HAMMARGREN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    THREAD CLEARANCE
    • Publication number 20230272678
    • Publication date Aug 31, 2023
    • John HAMMARGREN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILL BIT
    • Publication number 20220268104
    • Publication date Aug 25, 2022
    • SANDVIK MINING AND CONSTRUCTION TOOLS AB
    • John HAMMARGREN
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DRILL BIT WITH CURVED SLUDGE GROOVES
    • Publication number 20210238927
    • Publication date Aug 5, 2021
    • John HAMMARGREN
    • E21 - EARTH DRILLING MINING