Stefan Walker

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Altdorf, CH

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Patents Grantslast 30 patents

Information Patent Grant
Fire detection using the scattered light principle with a staggered...
- Patent number 10,685,546
- Issue date Jun 16, 2020
- Siemens Schweiz AG
- Aleksandar Duric
- G08 - SIGNALLING
Information Patent Grant
Scattered-light smoke detector with a two-color light-emitting diode
- Patent number 9,541,501
- Issue date Jan 10, 2017
- Siemens Schweiz AG
- Martin Allemann
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
Fire Detection Using The Scattered Light Principle With A Staggered...
- Publication number 20190197857
- Publication date Jun 27, 2019
- SIEMENS SCHWEIZ AG
- Aleksandar Duric
- G08 - SIGNALLING
Information Patent Application
Scattered-Light Smoke Detector With A Two-Color Light-Emitting Diode
- Publication number 20160153905
- Publication date Jun 2, 2016
- SIEMENS SCHWEIZ AG
- Martin Allemann
- G01 - MEASURING TESTING