Hans Keller

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Zurich, CH

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Patents Grantslast 30 patents

Information Patent Grant
Valve for integrating into a sanitary appliance
- Patent number 9,097,355
- Issue date Aug 4, 2015
- enswico IP AG
- Hans Keller
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Method and device for determining maintenance intervals
- Patent number 8,789,214
- Issue date Jul 29, 2014
- enswico IP AG
- Hans Keller
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Stench trap for a urinal
- Patent number 6,286,153
- Issue date Sep 11, 2001
- Hans Keller
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Method of and apparatus for controlling the inlet openings of centr...
- Patent number 3,990,356
- Issue date Nov 9, 1976
- Hans Rudolf Keller
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
VALVE FOR INTEGRATING INTO A SANITARY APPLIANCE
- Publication number 20130015388
- Publication date Jan 17, 2013
- ENSWICO IP AG
- Hans Keller
- E03 - WATER SUPPLY SEWERAGE
Information Patent Application
METHOD AND DEVICE FOR DETERMINING MAINTENANCE INTERVALS
- Publication number 20110016619
- Publication date Jan 27, 2011
- Hans Keller
- E03 - WATER SUPPLY SEWERAGE