Heinz-Dieter Nagel

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Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
Operating system for elevator doors
- Patent number 6,070,700
- Issue date Jun 6, 2000
- Inventio AG
- Heinz-Dieter Nagel
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Brake regulating apparatus for an elevator car
- Patent number 5,648,644
- Issue date Jul 15, 1997
- Inventio AG
- Heinz-Dieter Nagel
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Method and apparatus for reducing the power required by an hydrauli...
- Patent number 5,443,140
- Issue date Aug 22, 1995
- Inventio AG
- Heinz-Dieter Nagel
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Method and apparatus for saving electrical energy in an hydraulic e...
- Patent number 5,373,121
- Issue date Dec 13, 1994
- Inventio AG
- Heinz-Dieter Nagel
- B66 - HOISTING LIFTING HAULING