Chang; Jen-Kun
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chang; Jen-Kun.The latest application filed is for "support mechanism for operation auxiliary tools".
- Chang; Jen-Kun - Yangmei Township Taoyuan County TW
| Patent | Date |
|---|---|
| Support mechanism for operation auxiliary tools Grant 8,083,196 - Chang December 27, 2 | 2011-12-27 |
| Support Mechanism for Operation Auxiliary Tools App 20110253653 - CHANG; Jen-Kun | 2011-10-20 |
| Expansion mechanism for minimally invasive lumbar operation Grant 7,811,230 - Hsueh , et al. October 12, 2 | 2010-10-12 |
| Expansion mechanism for minimally invasive lumbar operation App 20080215081 - Hsueh; Shao-Kang ; et al. | 2008-09-04 |
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