Detlev Abraham

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Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
Passenger sensor for an escalator or moving walk
- Patent number 5,704,464
- Issue date Jan 6, 1998
- Otis Elevator Company
- Hermann W. Ahls
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Passenger conveyor control system having decentralized inputs and o...
- Patent number 5,697,485
- Issue date Dec 16, 1997
- Otis Elevator Company
- Detlev Abraham
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Operation panel for a passenger conveying device
- Patent number 5,482,153
- Issue date Jan 9, 1996
- Otis Elevator Company
- Detlev Abraham
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Indicator for a passenger conveying device
- Patent number 5,431,271
- Issue date Jul 11, 1995
- Otis Elevator Company
- Detlev Abraham
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Escalator passenger flow control
- Patent number 4,631,467
- Issue date Dec 23, 1986
- Otis Elevator Company
- Dietrich E. Herrmann
- B66 - HOISTING LIFTING HAULING