Pierson; Henri G. W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Pierson; Henri G. W..The latest application filed is for "horizontal belt filter".
- Pierson; Henri G. W. - Tenerife ES
- Pierson; Henri G. W. - Canary Islands ES
- Pierson; Henri G. W. - Bozeat Northamptonshire GB2
| Patent | Date |
|---|---|
| Horizontal belt filter Grant 5,368,732 - Pierson November 29, 1 | 1994-11-29 |
| Filtration apparatus with integral drying by electromagnetic radiation Grant 4,979,315 - Pierson December 25, 1 | 1990-12-25 |
| Horizontal vacuum belt filter Grant 4,495,070 - Pierson January 22, 1 | 1985-01-22 |
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