Xia; Junwu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Xia; Junwu.The latest application filed is for "discrete element method for modelling a fracture evolution of a roadway surrounding rock".
- Xia; Junwu - Jiangsu CN
- Xia; Junwu - Xuzhou CN
| Patent | Date |
|---|---|
| Discrete element method for modelling a fracture evolution of a roadway surrounding rock Grant 11,209,415 - Wang , et al. December 28, 2 | 2021-12-28 |
| Discrete Element Method For Modelling A Fracture Evolution Of A Roadway Surrounding Rock App 20210263003 - WANG; Xiangyu ; et al. | 2021-08-26 |
| Prefabricated stairs modular assembly mold and assembling method thereof Grant 11,034,054 - Chang , et al. June 15, 2 | 2021-06-15 |
| Blind bolt fastening device Grant 10,941,803 - Chang , et al. March 9, 2 | 2021-03-09 |
| Prefabricated Stairs Modular Assembly Mold And Assembling Method Thereof App 20210017775 - CHANG; Hong ; et al. | 2021-01-21 |
| Apparatus for protecting roof tray when gob-side entry retaining end support migrates Grant 10,822,949 - Bai , et al. November 3, 2 | 2020-11-03 |
| Blind Bolt Fastening Device App 20200003247 - CHANG; Hongfei ; et al. | 2020-01-02 |
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