Zhang; Yonggui
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zhang; Yonggui.The latest application filed is for "ear irrigation device".
- Zhang; Yonggui - Shandong CN
- Zhang; Yonggui - Ningbo CN
- Zhang; Yonggui - Zhejiang CN
- ZHANG; Yonggui - Qingdao Shandong
| Patent | Date |
|---|---|
| Energy-absorbing anti-creeper and train vehicle with energy-absorbing anti-creeper Grant 11,447,161 - Ding , et al. September 20, 2 | 2022-09-20 |
| Ear Irrigation Device App 20220203018 - Zhang; Yonggui ; et al. | 2022-06-30 |
| Earmuff Grant D956,363 - Hu , et al. June 28, 2 | 2022-06-28 |
| Earmuff Grant D956,364 - Zhang , et al. June 28, 2 | 2022-06-28 |
| Anti-reflux tube-type enemator Grant 11,260,166 - Zhang , et al. March 1, 2 | 2022-03-01 |
| Anti-reflux nasal aspirator Grant 11,260,163 - Zhang , et al. March 1, 2 | 2022-03-01 |
| Anti-reflux enema bag with pulley restrictor Grant 11,253,641 - Zhang , et al. February 22, 2 | 2022-02-22 |
| Ear-cover structure and ear irrigation device Grant 11,141,525 - Zhang , et al. October 12, 2 | 2021-10-12 |
| Pressure-Stabilized Ear Flushing Device Capable of Being Operated with One Hand App 20210259887 - Hu; Haibo ; et al. | 2021-08-26 |
| Energy absorption device and rail vehicle having same Grant 11,021,176 - Tian , et al. June 1, 2 | 2021-06-01 |
| Enema bucket device Grant D914,870 - Zhang , et al. March 30, 2 | 2021-03-30 |
| Enema bag Grant D910,838 - Zhang , et al. February 16, 2 | 2021-02-16 |
| Anti-reflux Tube-type Enemator App 20200390962 - Zhang; Yonggui ; et al. | 2020-12-17 |
| Anti-reflux Leakproof Enemator App 20200390961 - Zhang; Yonggui ; et al. | 2020-12-17 |
| Anti-reflux Enema Bag With Pulley Restrictor App 20200390963 - Zhang; Yonggui ; et al. | 2020-12-17 |
| Enemator with tube Grant D903,862 - Zhang , et al. December 1, 2 | 2020-12-01 |
| Anti-reflux Nasal Aspirator App 20200306425 - Zhang; Yonggui ; et al. | 2020-10-01 |
| Nasal aspirator Grant D897,525 - Zhang , et al. September 29, 2 | 2020-09-29 |
| Anti-reflux Enema Bucket System With Pulley Restrictor App 20200155753 - Zhang; Yonggui ; et al. | 2020-05-21 |
| Energy-Absorbing Anti-Creeper and Train Vehicle with Energy-Absorbing Anti-Creeper App 20200130715 - DING; Sansan ; et al. | 2020-04-30 |
| Method For Connecting A Connection Piece To A U-shaped Ring Anchor For A Head Module For Rail Vehicles App 20200001554 - DU; Jian ; et al. | 2020-01-02 |
| Coupling assembly and rail vehicle having same Grant 10,518,789 - Zhao , et al. Dec | 2019-12-31 |
| Coupling Assembly And Rail Vehicle Having Same App 20190329800 - ZHAO; Shizhong ; et al. | 2019-10-31 |
| Energy Absorption Device And Rail Vehicle Having Same App 20190039631 - TIAN; Aiqin ; et al. | 2019-02-07 |
| Railway vehicle and local multi-functional member thereof Grant 10,124,818 - Wang , et al. November 13, 2 | 2018-11-13 |
| Railway vehicle and chassis end plate assembly thereof Grant 10,071,753 - Liang , et al. September 11, 2 | 2018-09-11 |
| Railway Vehicle And Local Multi-functional Member Thereof App 20180178819 - WANG; Fei ; et al. | 2018-06-28 |
| Railway Vehicle And Chassis End Plate Assembly Thereof App 20180178818 - LIANG; Jianying ; et al. | 2018-06-28 |
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