Issued Patents All Time
Showing 26–50 of 97 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11542425 | Leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof | Lingfeng Wu, Jing Zhang, Wenzhe Li, Pingya Luo, Feng-Wei Dai +4 more | 2023-01-03 |
| 11525079 | Preparation method of fully adaptive modified nanographene plugging type anti-collapse drilling fluid and use thereof | Dezhi Liu, Jing Zhang, Pingya Luo, Gang Xie, Feng-Wei Dai +1 more | 2022-12-13 |
| 11485896 | Oil-based drilling fluid composition, oil-based drilling fluid and preparation method and use thereof | Daoxiong Li, Pingya Luo, Wen Xu, Wenzhe Li, Lingfeng Wu +3 more | 2022-11-01 |
| 11453814 | Pressure-bearing plugging agent and preparation method and use thereof | Lingfeng Wu, Pingya Luo, Haibo Liang, Wen Xu, Wenzhe Li +4 more | 2022-09-27 |
| 11441062 | Modified polyvinyl acetate and preparation method and use thereof and oil-based drilling fluid | Chunyan Liu, Pingya Luo, Gang Xie, Danchao Huang, Dezhi Liu +3 more | 2022-09-13 |
| 11445013 | Method for changing member in distributed system and distributed system | Lei Chen | 2022-09-13 |
| 11396621 | Pressure-bearing plugging composition, pressure-bearing plugging slurry and preparation method and use thereof | Lingfeng Wu, Pingya Luo, Jinsheng Sun, Haibo Liang, Wen Xu +4 more | 2022-07-26 |
| 11345841 | Fiber silica composite microsphere for shale stratum, drilling fluid and preparation method and use thereof | Lingfeng Wu, Pingya Luo, Wenzhe Li, Feng-Wei Dai, Gang Xie +3 more | 2022-05-31 |
| 11305345 | Method for preparing neodymium-iron-boron permanent magnetic material | Liangcheng Sun, Zhanfeng Yang, Zhihong Zhang, Xiaoyu Liu, Shufeng Liu +13 more | 2022-04-19 |
| 11263829 | Using a predicted color for both visibility evaluation and signal robustness evaluation | Alastair M. Reed, Tomas Filler, Kristyn R. Falkenstern | 2022-03-01 |
| 11250535 | Detecting conflicts between multiple different encoded signals within imagery, using only a subset of available image data, and robustness checks | Vojtech Holub, Vahid Sedighianaraki | 2022-02-15 |
| 11250226 | Detecting conflicts between multiple different encoded signals within imagery, using only a subset of available image data | Vahid Sedighianaraki, Vojtech Holub | 2022-02-15 |
| 11225594 | Drilling fluid for enhancing stratum pressure bearing capacity and preparation method and method of using thereof | Pingya Luo, Hao Zhang, Cheng Li, Yan Cheng, Guojun Li +2 more | 2022-01-18 |
| 11201537 | Method for suppressing common mode impulse current for inverter generated when switching on alternating current switch and application device thereof | Yanfei Yu, Hua Ni, Menglin Cao | 2021-12-14 |
| 11162010 | Nanometer plugging water-based drilling fluid and preparation method and use thereof | Pingya Luo, Guojun Li, Cheng Li, Hao Zhang, Yan Cheng | 2021-11-02 |
| 11043608 | Method and apparatus for manufacturing semiconductor sheet assembly | Luchuang Wang, Wusong TAO, Zhiqiu GUO, Xueming Zhang | 2021-06-22 |
| 11025797 | Predicting detectability and grading prior to printing | Dean H. Chadwick, Jackson B. Bennett, Daniel T. Pinard | 2021-06-01 |
| 10989576 | Method and system for obtaining micro-nano level fracture model and evaluating plugging performance of drilling fluid | Yan Cheng, Pingya Luo, Hongbo Li, Cheng Li, Hao Zhang +3 more | 2021-04-27 |
| D914125 | Table tennis net | — | 2021-03-23 |
| 10939303 | Placing access point | — | 2021-03-02 |
| 10930289 | Context-based smartphone sensor logic | Tony F. Rodriguez | 2021-02-23 |
| 10907950 | Laser heterodyne interferometric apparatus and method based on plane mirror reflection | Zheng Kun Li, Yun Lu, Zhong-Hua Zhang, Qing He | 2021-02-02 |
| 10902544 | Methods and arrangements for identifying objects | Eric D. Evans, Tomas Filler | 2021-01-26 |
| 10876034 | Modified silicon dioxide material of fluorocarbon active agent type super-amphiphobic cutting-carrying agent suitable for water-based drilling fluid and preparation method thereof | Guancheng Jiang, Xiaoxiao Ni, Yinbo He, Lili Yang, Tengfei Dong +7 more | 2020-12-29 |
| 10865337 | Multi-functional weighting agent for drilling fluid and preparation method thereof, and water-based drilling fluid and use thereof | Pingya Luo, Yan Cheng, Jinsheng Sun, Guancheng Jiang | 2020-12-15 |