John B. Portzer

Person

  • Elmhurst, IL, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Extraction tool for high density cable connectors

    • Patent number 5,210,934
    • Issue date May 18, 1993
    • AG Communication Systems Corporation
    • George Lenzi
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Optical drill collar position verifier

    • Patent number 5,175,532
    • Issue date Dec 29, 1992
    • AG Communication Systems Corporation
    • Thomas G. Wojciechowski
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • Information Patent Grant

    Drill collar position verifier

    • Patent number 5,040,309
    • Issue date Aug 20, 1991
    • AG Communication Systems Corporation
    • Gary E. Hayden
    • B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR