Freudenberger; Dieter
Patent Applications and Registrations
Patent applications and USPTO patent grants for Freudenberger; Dieter.The latest application filed is for "process for the extraction of carboxylic acids from dilute aqueous solutions".
- Freudenberger; Dieter - Hofheim am Taunus DE
- Freudenberger; Dieter - Hofheim Taunus DT
| Patent | Date |
|---|---|
| Process for the extraction of carboxylic acids from dilute aqueous solutions Grant 4,720,577 - Wojtech , et al. January 19, 1 | 1988-01-19 |
| Process for the preparation of ethylene glycol Grant 4,214,106 - Freudenberger , et al. July 22, 1 | 1980-07-22 |
| Process for the catalytic manufacture of .gamma.-butyrolactone Grant 4,096,156 - Freudenberger , et al. June 20, 1 | 1978-06-20 |
| Process for the continuous preparation of hydroxypivaldehyde Grant 3,935,274 - Jacobsen , et al. January 27, 1 | 1976-01-27 |
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