Norbert Schwetje

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Hanover, DE

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Patents Grantslast 30 patents

Information Patent Grant
Sorption of organic compounds from fluids
- Patent number 5,421,860
- Issue date Jun 6, 1995
- Engelhard Process Chemicals GmbH
- Karl-Heinz Bretz
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for catalytic reduction of nitrogen oxides
- Patent number 4,950,461
- Issue date Aug 21, 1990
- Kali-Chemie AG
- Norbert Schwetje
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for catalytic reduction of nitrogen oxides
- Patent number 4,935,393
- Issue date Jun 19, 1990
- Kali-Chemie A.G.
- Norbert Schwetje
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL