Karl-Heinz Schwarz

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Liederbach, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for extracting N-methyl-2-pyrrolidone
- Patent number 5,068,358
- Issue date Nov 26, 1991
- Hoechst Aktiengesellschaft
- Georg-Emerich Miess
- C07 - ORGANIC CHEMISTRY