Powell; Richard Llewellyn
Patent Applications and Registrations
Patent applications and USPTO patent grants for Powell; Richard Llewellyn.The latest application filed is for "thermal pump refrigerants".
- Powell; Richard Llewellyn - York GB
- Powell; Richard Llewellyn - Chester GB
- POWELL, RICHARD LLEWELLYN - CHESHIRE GB
- Powell, Richard Llewellyn - Tarporley GB
- Powell; Richard Llewellyn - Bunbury GB
- Powell; Richard Llewellyn - Runcorn EN
| Patent | Date |
|---|---|
| Thermal Pump Refrigerants App 20220162489 - Poole; John Edward ; et al. | 2022-05-26 |
| Method of production of fluorinated carbon nanostructures Grant 7,939,141 - Matthews , et al. May 10, 2 | 2011-05-10 |
| Method Of Production Of Fluorinated Carbon Nanostructures App 20100155221 - Powell; Richard Llewellyn ; et al. | 2010-06-24 |
| Fluorinated carbon nanostructures of CF.sub.x where 0.05<x<0.30 Grant 7,700,192 - Matthews , et al. April 20, 2 | 2010-04-20 |
| Method Of Production Of Fluorinated Carbon Nanostructures App 20080090080 - Powell; Richard Llewellyn ; et al. | 2008-04-17 |
| Production Of Hydrofluoroalkanes App 20020040171 - EWING, PAUL NICHOLAS ; et al. | 2002-04-04 |
| Process for the extraction of a compound by a fluorocarbon compound App 20020004079 - Powell, Richard Llewellyn ; et al. | 2002-01-10 |
| Process for the extraction of a compound by a fluorocarbon compound App 20010021367 - Powell, Richard Llewellyn ; et al. | 2001-09-13 |
| Process for the extraction of a compound by a fluorocarbon compound Grant 6,224,847 - Powell , et al. May 1, 2 | 2001-05-01 |
| Composition comprising a hydrofluoroalkane or hydrochlorofluoroalkane and a polyether lubricant Grant 6,183,661 - Makin , et al. February 6, 2 | 2001-02-06 |
| Process for the production of fluorine containing olefins Grant 5,856,593 - Powell , et al. January 5, 1 | 1999-01-05 |
| Textile treatments Grant 3,959,229 - Downing , et al. May 25, 1 | 1976-05-25 |
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