Zhao; Zhifeng
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zhao; Zhifeng.The latest application filed is for "multi-function high-frequency tool for endoscope".
- Zhao; Zhifeng - Shenzhen CN
- Zhao; Zhifeng - Zhejiang CN
- Zhao; Zhifeng - Shandong Province CN
| Patent | Date |
|---|---|
| Earmuff for an in-ear headphone Grant D892,771 - Zhao , et al. A | 2020-08-11 |
| Multi-function high-frequency tool for endoscope Grant 10,470,816 - Zhou , et al. Nov | 2019-11-12 |
| Solar street light Grant D862,763 - Zhao O | 2019-10-08 |
| Multi-function High-frequency Tool For Endoscope App 20180368909 - ZHOU; Huazhen ; et al. | 2018-12-27 |
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