Tong; Chengke
Patent Applications and Registrations
Patent applications and USPTO patent grants for Tong; Chengke.The latest application filed is for "four-way adjustable headrest".
- Tong; Chengke - Shanghai CN
| Patent | Date |
|---|---|
| Four-way adjustable headrest Grant 9,649,958 - Wang , et al. May 16, 2 | 2017-05-16 |
| Four-way Adjustable Headrest App 20150203008 - Wang; Jianhua ; et al. | 2015-07-23 |
| Four-way adjustable headrest Grant 8,950,815 - Wang , et al. February 10, 2 | 2015-02-10 |
| Four-way Adjustable Headrest App 20140145489 - Wang; Jianhua ; et al. | 2014-05-29 |
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