TREA

Lee C. Seydel

Follow

Person

  • Iowa City, IA, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    SS7 gateway
    • Patent number 5,966,431
    • Issue date Oct 12, 1999
    • MCI Communications Corporation
    • Douglas P. Reiman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    SS7 gateway
    • Patent number 5,706,286
    • Issue date Jan 6, 1998
    • MCI Communications Corporation
    • Douglas P. Reiman
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Automated telephone operator services
    • Patent number 5,703,935
    • Issue date Dec 30, 1997
    • MCI Communications Corporation
    • Anousheh Raissyan
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    System and method of validating special service calls having differ...
    • Patent number 5,640,446
    • Issue date Jun 17, 1997
    • MCI Corporation
    • David Alan Everett
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Calling card validation system and method therefor
    • Patent number 5,638,431
    • Issue date Jun 10, 1997
    • MCI Corporation
    • David A. Everett
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE