Erich Istel

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Dormagen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Stabilized polyamides
- Patent number 5,059,643
- Issue date Oct 22, 1991
- Bayer Aktiengesellschaft
- Hans-Josef Buysch
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of stabilized polyamides
- Patent number 4,837,265
- Issue date Jun 6, 1989
- Bayer Aktiengesellschaft
- Erich Istel
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for the preparation of water-soluble dyestuffs with a low s...
- Patent number 4,340,389
- Issue date Jul 20, 1982
- Bayer Aktiengesellschaft
- Konrad Nonn
- D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...