Stefan Spannhake

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Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for switching between mains supply and a frequency inverter...
- Patent number 6,782,989
- Issue date Aug 31, 2004
- Otis Elevator Company
- Stefan Spannhake
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Switch over from the mains supply to a frequency converter by a pha...
- Patent number 6,634,463
- Issue date Oct 21, 2003
- Otiscelecator Company
- Stefan Spannhake
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Process for switching between main supply and a frequency inverter...
- Patent number 6,626,279
- Issue date Sep 30, 2003
- Otis Elevator Company
- Reinhard Henkel
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Use of multi-state sensors
- Patent number 6,591,947
- Issue date Jul 15, 2003
- Otis Elevator Company
- Herbert Horbrügger
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Electronic safety system for escalators
- Patent number 6,267,219
- Issue date Jul 31, 2001
- Otis Elevator Company
- Stefan Spannhake
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Sonic position measurement system
- Patent number 5,883,345
- Issue date Mar 16, 1999
- Otis Elevator Company
- Uwe Schonauer
- B66 - HOISTING LIFTING HAULING

Patents Applicationslast 30 patents

Information Patent Application
Process for switching between mains supply and a frequency inverter...
- Publication number 20030000801
- Publication date Jan 2, 2003
- Otis Elevator Company
- Stefan Spannhake
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Switch over from the mains supply to a frequency converter by a pha...
- Publication number 20020189905
- Publication date Dec 19, 2002
- Otis Elevator Company
- Stefan Spannhake
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Use of multi-state sensors
- Publication number 20020166732
- Publication date Nov 14, 2002
- Otis Elevator Company
- Herbert Horbrugger
- B66 - HOISTING LIFTING HAULING
Information Patent Application
Process for switching between main supply and a frequency inverter...
- Publication number 20020162726
- Publication date Nov 7, 2002
- Reinhard Henkel
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER