Chen; Der-Yuh
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chen; Der-Yuh.The latest application filed is for "resilient device for door handle and knob".
- Chen; Der-Yuh - Pin Tung City TW
| Patent | Date |
|---|---|
| Resilient device for door handle and knob Grant 7,828,349 - Chen November 9, 2 | 2010-11-09 |
| Resilient Device For Door Handle And Knob App 20100019515 - CHEN; DER-YUH | 2010-01-28 |
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