Doig; Ian Dracup
Patent Applications and Registrations
Patent applications and USPTO patent grants for Doig; Ian Dracup.The latest application filed is for "concentration of solids in a suspension using hollow fibre membranes".
- Doig; Ian Dracup - Rosville Chase AU
- Doig; Ian Dracup - Roseville Chase New South Wales AU
| Patent | Date |
|---|---|
| Concentration of solids in a suspension using hollow fibre membranes Grant 5,643,455 - Kopp , et al. July 1, 1 | 1997-07-01 |
| Devices Whereby The Local Fluid Rates In A Fluidised Bed Are Made To Fluctuate Grant 3,867,114 - Doig February 18, 1 | 1975-02-18 |
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