Dirk Rothhaas

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Donaueschingen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Signaling appliance, in particular a signaling column
- Patent number 7,545,284
- Issue date Jun 9, 2009
- WERMA Signaltechnik GmbH & Co. KG
- Siegfried Neumann
- F21 - LIGHTING
Information Patent Grant
Illuminator for a signal lamp
- Patent number 6,572,242
- Issue date Jun 3, 2003
- Werma Signaltechnik GmbH & Co.
- Erich Marquardt
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
Signaling appliance, in particular a signaling column
- Publication number 20060089017
- Publication date Apr 27, 2006
- Siegfried Neumann
- F21 - LIGHTING
Information Patent Application
Illuminator for a signal lamp
- Publication number 20010040804
- Publication date Nov 15, 2001
- WERMA Signaltechnik GmbH & Co
- Erich Marquardt
- H01 - BASIC ELECTRIC ELEMENTS