Hans Helmut Hahn

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Pretoria, ZA

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Patents Grantslast 30 patents

Information Patent Grant
Solar heat collecting device
- Patent number 9,903,615
- Issue date Feb 27, 2018
- AQUA FILTER (PTY) LTD
- Hans Helmut Hahn
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Process and gas generator for generating fuel gas
- Patent number 6,941,879
- Issue date Sep 13, 2005
- Foretop Corporation
- Hans Helmut Hahn
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Upgrading coal for coking purposes
- Patent number 4,053,569
- Issue date Oct 11, 1977
- Hans Helmut Hahn
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
SOLAR HEAT COLLECTING DEVICE
- Publication number 20130008433
- Publication date Jan 10, 2013
- Hans Helmut HAHN
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
Process and gas generator for generating fuel gas
- Publication number 20040182294
- Publication date Sep 23, 2004
- Hans Helmut Hahn
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...