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Richard J. Greenleaf

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  • Manchester, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Fastener enabled multi-plate securement and alignment arrangement
    • Patent number 11,904,375
    • Issue date Feb 20, 2024
    • Richard J. Greenleaf
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Flexgrip cam-wing arrangement
    • Patent number 11,897,018
    • Issue date Feb 13, 2024
    • Richard J. Greenleaf
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Dual flexgrip arrangement
    • Patent number 10,889,020
    • Issue date Jan 12, 2021
    • Richard J. Greenleaf
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Flexible finger biasing arrangement for punch press machines
    • Patent number 10,807,269
    • Issue date Oct 20, 2020
    • Richard J. Greenleaf
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Keeper plate alignment arrangement for punch press
    • Patent number 10,384,257
    • Issue date Aug 20, 2019
    • Richard J. Greenleaf
    • B26 - HAND CUTTING TOOLS CUTTING SEVERING
  • Information Patent Grant

    Flexible grip die-alignment arrangement
    • Patent number 10,201,906
    • Issue date Feb 12, 2019
    • Richard J. Greenleaf
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Flexible grip die-alignment arrangement
    • Patent number 9,561,534
    • Issue date Feb 7, 2017
    • Richard James Greenleaf
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Flexible grip die-alignment arrangement
    • Patent number 8,925,435
    • Issue date Jan 6, 2015
    • Richard J. Greenleaf
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Shedder pin
    • Patent number D629025
    • Issue date Dec 14, 2010
    • Richard J. Greenleaf
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Punch
    • Patent number D615569
    • Issue date May 11, 2010
    • Richard J. Greenleaf
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Shedder pin
    • Patent number D585916
    • Issue date Feb 3, 2009
    • Richard J. Greenleaf
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Washer punch insert plug
    • Patent number D561790
    • Issue date Feb 12, 2008
    • Richard J. Greenleaf
    • D15 - Machines not elsewhere specified

Patents Applicationslast 30 patents