Werner Buttner

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Darmstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for the purification of corrosive gases
- Patent number 7,108,737
- Issue date Sep 19, 2006
- BASF Aktiengesellschaft
- Ewald Neumann
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for producing high-purity hydrochloric acid
- Patent number 6,793,905
- Issue date Sep 21, 2004
- Merck Patent GmbH
- Werner Büttner
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for producing high-purity sulphuric acid
- Patent number 6,740,302
- Issue date May 25, 2004
- Merck Patent GmbH
- Martin Hostalek
- C01 - INORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Method for the purification of corrosive gases
- Publication number 20040089152
- Publication date May 13, 2004
- Ewald Neumann
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
Method for producing high-purity sulphuric acid
- Publication number 20020192144
- Publication date Dec 19, 2002
- Martin Hostalek
- C01 - INORGANIC CHEMISTRY