Hans-Jurgen Ludewig

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Rinteln, DE

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Patents Grantslast 30 patents

Information Patent Grant
Automatic shower control
- Patent number 5,829,072
- Issue date Nov 3, 1998
- Friedrich Grohe AG
- Heinz Hirsch
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Control device for a sanitary fixture
- Patent number 5,743,511
- Issue date Apr 28, 1998
- Friedrich Grohe AG
- Heinz-Dieter Eichholz
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Adjusting and servicing a computer-controlled mixing valve
- Patent number 5,174,495
- Issue date Dec 29, 1992
- Friedrich Grohe Armaturenfabrik GmbH & Co.
- Heinz-Dieter Eichholz
- G05 - CONTROLLING REGULATING