Koo; Kee Kahb
Patent Applications and Registrations
Patent applications and USPTO patent grants for Koo; Kee Kahb.The latest application filed is for "system and method for recycling high-boiling-point waste photoresist stripper".
- Koo; Kee Kahb - Seoul KR
| Patent | Date |
|---|---|
| Method for preparing L-methionine crystals using crystallization technique Grant 10,870,619 - Kim , et al. December 22, 2 | 2020-12-22 |
| System and method for recycling high-boiling-point waste photoresist stripper Grant 9,168,468 - Lee , et al. October 27, 2 | 2015-10-27 |
| System And Method For Recycling High-boiling-point Waste Photoresist Stripper App 20150129409 - LEE; Ho Kyung ; et al. | 2015-05-14 |
| System and method for recycling high-boiling-point waste photoresist stripper Grant 8,961,744 - Lee , et al. February 24, 2 | 2015-02-24 |
| Preparation of iron(II) acetate powder from a low grade magnetite Grant 7,550,618 - Jang , et al. June 23, 2 | 2009-06-23 |
| Preparation Of Iron (ii) Acetate Powder From A Low Grade Magnetite App 20090105493 - Jang; Hee Dong ; et al. | 2009-04-23 |
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