Siegfried Riegger

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Ettenheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process and apparatus for removing volatile constituents from polym...
- Patent number 4,578,455
- Issue date Mar 25, 1986
- BASF Aktiengesellschaft
- Gunter Pipper
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Continuous preparation of nylon from aqueous salt solution in preco...
- Patent number 4,540,772
- Issue date Sep 10, 1985
- BASF Aktiengesellschaft
- Gunter Pipper
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...