Andrew A. Porterfield

Person

  • Sacramento, CA, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Vehicle mounted crash attenuator

    • Patent number 6,905,282
    • Issue date Jun 14, 2005
    • Energy Absorption Systems, Inc.
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Vehicle mounted crash attenuator

    • Publication number 20040145173
    • Publication date Jul 29, 2004
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL
  • Information Patent Application

    Vehicle mounted crash attenuator

    • Publication number 20030077119
    • Publication date Apr 24, 2003
    • Energy absorption system, Inc.
    • Patrick A. Leonhardt
    • B60 - VEHICLES IN GENERAL