TREA

Robert J. Hayes

Follow

Person

  • Gahanna, OH, US
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Luminaire
    • Patent number D333011
    • Issue date Feb 2, 1993
    • Holophane Company, Inc.
    • Robert L. Ewing
    • D26 - Lighting
  • Information Patent Grant

    Luminaire
    • Patent number D332503
    • Issue date Jan 12, 1993
    • Holophane Company, Inc.
    • Robert D. Ewing
    • D26 - Lighting
  • Information Patent Grant

    Luminaire
    • Patent number D332504
    • Issue date Jan 12, 1993
    • Holophane Company, Inc.
    • Robert L. Ewing
    • D26 - Lighting
  • Information Patent Grant

    Industrial luminaire with a quickly installed new and improved opti...
    • Patent number 5,121,309
    • Issue date Jun 9, 1992
    • Holophane Company, Inc.
    • Robert L. Ewing
    • F21 - LIGHTING