Velthuis; Otto M.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Velthuis; Otto M..The latest application filed is for "process for the preparation of a silver-containing ethylene oxide catalyst and the catalyst prepared by the process".
- Velthuis; Otto M. - Amsterdam NL
| Patent | Date |
|---|---|
| Process for the preparation of a silver-containing ethylene oxide catalyst and the catalyst prepared by the process Grant 4,806,518 - Boxhoorn , et al. February 21, 1 | 1989-02-21 |
| Ethylene oxide catalyst Grant 4,731,350 - Boxhoorn , et al. March 15, 1 | 1988-03-15 |
| Ethylene oxide catalyst Grant 4,728,634 - Boxhoorn , et al. March 1, 1 | 1988-03-01 |
| Process for the separation of crystalline silicates Grant 4,383,981 - van Erp , et al. May 17, 1 | 1983-05-17 |
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