TREA

Wolfgang Semelka

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  • Witten, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Servo door-closer
    • Patent number 9,501,047
    • Issue date Nov 22, 2016
    • Dorma Deutschland GmbH
    • Thomas Salutzki
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Sensor arrangement for monitoring a spatial area
    • Patent number 6,914,401
    • Issue date Jul 5, 2005
    • DORMA GmbH + Co. KG
    • Wolfgang Semelka
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    SERVO DOOR-CLOSER
    • Publication number 20140346997
    • Publication date Nov 27, 2014
    • Thomas Salutzki
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES