Zhang; Chaohui
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zhang; Chaohui.The latest application filed is for "perforating device for horizontal wells".
- Zhang; Chaohui - Qianjiang CN
- ZHANG; Chaohui - Shanghai CN
- Zhang; Chaohui - Foster City CA US
| Patent | Date |
|---|---|
| Perforating device for horizontal wells Grant 11,359,466 - Yang , et al. June 14, 2 | 2022-06-14 |
| Perforating Device For Horizontal Wells App 20200408074 - YANG; Guosheng ; et al. | 2020-12-31 |
| Metal Wire Armored Optoelectronic Hybrid Cable App 20190287697 - ZHANG; Chaohui ; et al. | 2019-09-19 |
| Intercepting GPRS data Grant 8,472,384 - Shu , et al. June 25, 2 | 2013-06-25 |
| Intercepting Gprs Data App 20110069663 - SHU; Jesse C. ; et al. | 2011-03-24 |
| Intercepting GPRS data Grant 7,865,944 - Shu , et al. January 4, 2 | 2011-01-04 |
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