Seo; Kyu Bum
Patent Applications and Registrations
Patent applications and USPTO patent grants for Seo; Kyu Bum.The latest application filed is for "preparation of highly pure copper oxide from waste etchant".
- Seo; Kyu Bum - Shiheung KR
| Patent | Date |
|---|---|
| Preparation of highly pure copper oxide from waste etchant Grant 6,649,131 - Seo , et al. November 18, 2 | 2003-11-18 |
| Preparation of highly pure copper oxide from waste etchant App 20010051103 - Seo, Kyu Bum ; et al. | 2001-12-13 |
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