Richard Wessendorf

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Essen-Heisingen, DT

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Patents Grantslast 30 patents

Information Patent Grant
Continuous process for refining glyoxal
- Patent number 4,065,506
- Issue date Dec 27, 1977
- Veba-Chemie AG
- Richard Wessendorf
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for purifying glyoxal
- Patent number 4,006,189
- Issue date Feb 1, 1977
- Veba-Chemie AG
- August Sommer
- C07 - ORGANIC CHEMISTRY