CHANG; Sang Kohn
Patent Applications and Registrations
Patent applications and USPTO patent grants for CHANG; Sang Kohn.The latest application filed is for "orthodontic device".
- CHANG; Sang Kohn - Daegu KR
- Chang, Sang-Kohn - Daegu-si KR
- Chang, Sang Kohn - Taegu KR
| Patent | Date |
|---|---|
| Orthodontic Device App 20180140384 - CHANG; Sang Kohn | 2018-05-24 |
| Dental implant system Grant 7,090,493 - Chang August 15, 2 | 2006-08-15 |
| Abutment of implant system App 20050153261 - Chang, Sang-Kohn | 2005-07-14 |
| Dental implant fixture App 20050147943 - Chang, Sang-Kohn | 2005-07-07 |
| Dental implant system App 20050100863 - Chang, Sang-Kohn | 2005-05-12 |
| Manual hand ratch reamer for dentist App 20020034716 - Chang, Sang Kohn | 2002-03-21 |
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