Ham; Sangsun
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ham; Sangsun.The latest application filed is for "recyclable air filter".
- Ham; Sangsun - Kyungki-Do KR
| Patent | Date |
|---|---|
| Disposable filter cartridge Grant 6,991,112 - Ham January 31, 2 | 2006-01-31 |
| Recyclable air filter Grant 6,986,799 - Ham January 17, 2 | 2006-01-17 |
| Recyclable air filter App 20040035096 - Ham, Sangsun | 2004-02-26 |
| Disposable filter cartridge App 20030168400 - Ham, Sangsun | 2003-09-11 |
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