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Patent applications and USPTO patent grants for Zhang; Linchuan.The latest application filed is for "focus-adjustable lighting device".
Patent | Date |
---|---|
Drilling system and method of submarine drilling rig Grant 11,428,048 - Xiao , et al. August 30, 2 | 2022-08-30 |
Focus-adjustable lighting device Grant 11,125,417 - Shen , et al. September 21, 2 | 2021-09-21 |
Focus-adjustable Lighting Device App 20200348008 - SHEN; XIQIANG ;   et al. | 2020-11-05 |
Drilling System And Method Of Submarine Drilling Rig App 20200270951 - XIAO; Wensheng ;   et al. | 2020-08-27 |
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