Ferdinand Von Praun

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Haltern, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of maleic anhydride
- Patent number 4,571,426
- Issue date Feb 18, 1986
- Chemische Werke Huls AG
- Fritz Gude
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the recovery of five-membered ring dicarboxylic acid an...
- Patent number 4,562,264
- Issue date Dec 31, 1985
- Chemische Werke Huls Aktiengesellschaft
- Fritz Gude
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preparing sodium bicarbonate and hydrogen chloride
- Patent number 4,337,234
- Issue date Jun 29, 1982
- Chemische Werke Huls AG
- Bernhard Hentschel
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for preparing gaseous hydrogen chloride from dilute aqueous...
- Patent number 4,272,502
- Issue date Jun 9, 1981
- Chemische Werke Huls Aktiengesellschaft
- Willi Ziegenbein
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for obtaining gaseous hydrogen chloride from dilute aqueous...
- Patent number 4,259,309
- Issue date Mar 31, 1981
- Chemische Werke Huls AG
- Alfred Coenen
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Purification of tertiary amines using an adsorbent
- Patent number 4,255,356
- Issue date Mar 10, 1981
- Chemische Werke Huls AG
- Alfred Coenen
- C07 - ORGANIC CHEMISTRY