Day; Joseph G.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Day; Joseph G..The latest application filed is for "process for the recovery of platinum group metals from refractory ceramic substrates".
- Day; Joseph G. - Holmer Green GB2
| Patent | Date |
|---|---|
| Process for the recovery of platinum group metals from refractory ceramic substrates Grant 4,428,768 - Day January 31, 1 | 1984-01-31 |
| Yttrium containing alloys Grant 4,244,736 - Day January 13, 1 | 1981-01-13 |
| Extraction of metals Grant 4,135,923 - Day January 23, 1 | 1979-01-23 |
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