TREA

Robert J. Hartke

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  • Beecher, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronically controlled siren
    • Patent number 12,240,375
    • Issue date Mar 4, 2025
    • FEDERAL SIGNAL CORPORATION
    • Vincent S. Fleszewski
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Lighting unit with electronically modulated beam configuration
    • Patent number 11,708,020
    • Issue date Jul 25, 2023
    • Federal Signal Corporation
    • Duane P. Belitz
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    Lighting unit
    • Patent number D974212
    • Issue date Jan 3, 2023
    • Federal Signal Corporation
    • Duane P. Belitz
    • D10 - Measuring, testing, or signalling instruments

Patents Applicationslast 30 patents