Rolf Sief

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Bielefeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Device for treating a flowing fluid
- Patent number 7,592,607
- Issue date Sep 22, 2009
- Wedeco AG
- Rolf Sief
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Amalgam-doped low mercury low-pressure UV irradiator
- Patent number 7,061,173
- Issue date Jun 13, 2006
- Wedeco AG Water Technology
- Joachim Fischer
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Amalgam low pressure mercury UV lamp
- Patent number 7,049,738
- Issue date May 23, 2006
- Wedeco AG Water Technology
- Joachim Fischer
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

Patents Applicationslast 30 patents

Information Patent Application
IN-LINE UV-GERMICIDAL DEVICE FOR FLUID MEDIA
- Publication number 20110076188
- Publication date Mar 31, 2011
- Wedeco AG
- Rolf Sief
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Device for treating a flowing fluid
- Publication number 20070290144
- Publication date Dec 20, 2007
- Rolf Sief
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Amalgam low pressure mercury UV lamp
- Publication number 20050189864
- Publication date Sep 1, 2005
- Joachim Fischer
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Amalgam-doped low mercury low-pressure uv irradiator
- Publication number 20040232846
- Publication date Nov 25, 2004
- Joachim Fischer
- H01 - BASIC ELECTRIC ELEMENTS