Gerhard Niederfeld

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Essen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Signal communication system
- Patent number 11,422,518
- Issue date Aug 23, 2022
- ista International GmbH
- Gerhard Niederfeld
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Smoke detector and method of checking blockage of its smoke holes
- Patent number 8,294,587
- Issue date Oct 23, 2012
- ista International GmbH
- Michael Danz
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
SIGNAL COMMUNICATION SYSTEM
- Publication number 20200119969
- Publication date Apr 16, 2020
- ISTA INTERNATIONAL GMBH
- Gerhard NIEDERFELD
- G05 - CONTROLLING REGULATING
Information Patent Application
SMOKE DETECTOR AND METHOD OF CHECKING BLOCKAGE OF ITS SMOKE HOLES
- Publication number 20100328082
- Publication date Dec 30, 2010
- Michael DANZ
- G08 - SIGNALLING
Information Patent Application
Wireless data exchange
- Publication number 20080122651
- Publication date May 29, 2008
- Shared Services GmbH
- Gerhard Niederfeld
- H04 - ELECTRIC COMMUNICATION TECHNIQUE