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SIGMA TOOL & MACHINE LTD., PARTNERSHIP

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Patents Grantslast 30 patents

  • Information Patent Grant

    Nose piece for inserting fixing elements into predefined seats
    • Patent number 8,181,712
    • Issue date May 22, 2012
    • Sigma Tool & Machine
    • Sung Hsiang Liu
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Clip crimping tool
    • Patent number 6,317,970
    • Issue date Nov 20, 2001
    • Sigma Tool & Machine
    • Herbert E. Leistner
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    T-nut with indented leading and trailing edge flanges
    • Patent number 6,305,888
    • Issue date Oct 23, 2001
    • Sigma Tool & Machine
    • Herbert E. Leistner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sealed end tee-nut
    • Patent number 6,183,181
    • Issue date Feb 6, 2001
    • Sigma Tool & Machine
    • Herbert E. Leistner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tee-nut with globular shaped sleeve
    • Patent number 6,129,493
    • Issue date Oct 10, 2000
    • Sigma Tool & Machine
    • Herbert E. Leistner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tee-nut strip with edge membranes
    • Patent number 5,918,738
    • Issue date Jul 6, 1999
    • Sigma Tool & Machine
    • Martin Leistner
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Chipped nail welded wire nailing strip and method
    • Patent number 5,909,993
    • Issue date Jun 8, 1999
    • Sigma Tool & Machine
    • Walter H. Leistner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tee-nut with radiussed barrel end
    • Patent number 5,863,164
    • Issue date Jan 26, 1999
    • Sigma Tool & Machine
    • Volkmar W. Leistner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tee-nut holder strip
    • Patent number 5,762,190
    • Issue date Jun 9, 1998
    • Sigma Tool & Machine
    • Martin Leistner
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Clip for furniture springs, and method of manufacture
    • Patent number 5,722,131
    • Issue date Mar 3, 1998
    • Sigma Tool & Machine
    • Volkmar W. Leistner
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Tee-nut with enlarged barrel end
    • Patent number 5,618,144
    • Issue date Apr 8, 1997
    • Sigma Tool & Machine
    • Volkmar W. Leistner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Variable impact tee-nut insertion machine
    • Patent number 5,606,794
    • Issue date Mar 4, 1997
    • Sigma Tool & Machine
    • Volkmar W. Leistner
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tee-nut setting and forming machine
    • Patent number 5,560,099
    • Issue date Oct 1, 1996
    • Sigma Tool & Machine
    • Walter H. Leistner
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Anti-friction Tee-nut with deflected edges
    • Patent number 5,501,558
    • Issue date Mar 26, 1996
    • Sigma Tool & Machine
    • Siegfried Figge
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Nail collator and welder
    • Patent number 4,711,980
    • Issue date Dec 8, 1987
    • Sigma Tool & Machine Limited
    • Walter H. Leistner
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Tee nut fastener member
    • Patent number 4,508,478
    • Issue date Apr 2, 1985
    • Sigma Tool & Machine Limited
    • Herbert E. Leistner
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Apparatus for feeding elongated objects
    • Patent number 4,472,956
    • Issue date Sep 25, 1984
    • Sigma Tool & Machine Limited
    • Walter H. Leistner
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Magazine assembly for coil nails
    • Patent number 4,433,782
    • Issue date Feb 28, 1984
    • Sigma Tool & Machine Limited
    • Siegfried E. O. Figge
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Trademarklast 30 trademarks

  • Information Trademark

    75198406 - ULTRAGRIP
    • Serial number 75198406
    • Filing date Nov 15, 1996
    • SIGMA TOOL & MACHINE A PARTNERSHIP OF SIGMA TOOL & MACHINE LTD AND SIGMA FAST...
    • 6 - Common metals and their alloys