Heinz Dumm

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Essen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Crude oil with a depressed pour point
- Patent number 4,894,175
- Issue date Jan 16, 1990
- Th. Goldschmidt AG
- Gotz Koerner
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Substantive preparation material for yarns or plied yarns
- Patent number 4,434,008
- Issue date Feb 28, 1984
- Th. Goldschmidt AG
- Heinz Dumm
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...