Pontefract; John
Patent Applications and Registrations
Patent applications and USPTO patent grants for Pontefract; John.The latest application filed is for "vaporiser for generating feed gas for an arc chamber".
- Pontefract; John - East Sussex GB
- Pontefract; John - Uckfield GB2
| Patent | Date |
|---|---|
| Vaporizer for generating feed gas for an arc chamber Grant 7,004,234 - Povall , et al. February 28, 2 | 2006-02-28 |
| Vaporiser for generating feed gas for an arc chamber App 20030183172 - Povall, Simon ; et al. | 2003-10-02 |
| Vaporiser for generating feed gas for an arc chamber App 20010054384 - Povall, Simon ; et al. | 2001-12-27 |
| Ion implantation apparatus having increased source lifetime Grant 5,886,355 - Bright , et al. March 23, 1 | 1999-03-23 |
| Ion implantation apparatus having increased source lifetime Grant 5,262,652 - Bright , et al. November 16, 1 | 1993-11-16 |
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