Zwijnenburg; Arie
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zwijnenburg; Arie.The latest application filed is for "semipermeable composite membrane and a method for the preparation of such a membrane".
- Zwijnenburg; Arie - Oldekerk NL
- Zwijnenburg; Arie - Groningen NL
| Patent | Date |
|---|---|
| Semipermeable composite membrane and a method for the preparation of such a membrane Grant 5,833,854 - Zwijnenburg , et al. November 10, 1 | 1998-11-10 |
| Process for continuous preparation of fibrous polymer crystals Grant 4,137,394 - Meihuizen , et al. January 30, 1 | 1979-01-30 |
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