Friedhelm Sahlmen

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Moers, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the oxidation of water-insoluble organic compounds
- Patent number 5,174,985
- Issue date Dec 29, 1992
- Bayer Aktiengesellschaft
- Hans-Helmut Schwarz
- A62 - LIFE-SAVING FIRE-FIGHTING
Information Patent Grant
Process for the improved separation of clarified liquid from biomas...
- Patent number 5,000,853
- Issue date Mar 19, 1991
- Bayer Aktiengesellschaft
- Artur Reischl
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Gulley closure
- Patent number 4,988,234
- Issue date Jan 29, 1991
- Bayer Aktiengesellschaft
- Hanno Henkel
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Combustion of aqueous sewage sludge by the fluidized bed process
- Patent number 4,834,003
- Issue date May 30, 1989
- Bayer Aktiengesellschaft
- Artur Reischl
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Process for the improved separation of clarified liquid from biomas...
- Patent number 4,735,725
- Issue date Apr 5, 1988
- Bayer Aktiengesellschaft
- Artur Reischl
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for the improved working up of effluent
- Patent number 4,287,069
- Issue date Sep 1, 1981
- Bayer Aktiengesellschaft
- Artur Reischl
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE