Wickenhaeuser; Gerhard
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wickenhaeuser; Gerhard.The latest application filed is for "recovery of aqueous glyoxylic acid solutions".
- Wickenhaeuser; Gerhard - Bergisch-Gladbach DE
- Wickenhaeuser; Gerhard - Birkenheide DE
| Patent | Date |
|---|---|
| Recovery of aqueous glyoxylic acid solutions Grant 4,902,828 - Wickenhaeuser , et al. February 20, 1 | 1990-02-20 |
| Process for drying finely divided pigments Grant 4,368,582 - Graser , et al. January 18, 1 | 1983-01-18 |
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