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Corey F. Crispell

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  • Warminster, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Knurled cup-point set screw
    • Patent number 4,764,068
    • Issue date Aug 16, 1988
    • SPS Technologies, Inc.
    • Corey Crispell
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Method of prestressing bolts
    • Patent number 4,229,875
    • Issue date Oct 28, 1980
    • SPS Technologies, Inc.
    • Corey F. Crispell
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...