Volker Franzen

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Heidelberg, DT

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Patents Grantslast 30 patents

Information Patent Grant
Method of purifying the waste water of paper mills
- Patent number 4,019,952
- Issue date Apr 26, 1977
- Feldmuhle Anlagen- und Produktionsgesellschaft mit beschrankter Haftung
- Theodor Ploetz
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of purifying the waste water of paper mills
- Patent number 3,998,731
- Issue date Dec 21, 1976
- Feldmuhle Anlagen- und Produktionsgesellschaft mit beschrankter Haftung
- Volker Franzen
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Bis(4-hydroxy-3,5-dialkylbenzyl)cyano-carboxylic acid esters
- Patent number 3,950,382
- Issue date Apr 13, 1976
- Ciba-Geigy Corporation
- Heinz Eggensperger
- C07 - ORGANIC CHEMISTRY