Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11841092 | Stem seals with triangular rings | Xiaozhong Zhang | 2023-12-12 |
| 11543053 | Stem seals with triangular rings | Xiaozhong Zhang | 2023-01-03 |
| 10996133 | Sealing tightness testing device | Xiaozhong Zhang, Xiaoqiu ZHANG | 2021-05-04 |
| 10675584 | Method and apparatus for removing sulfur oxides from gas | Jing Luo | 2020-06-09 |
| 10561982 | Ammonia-based desulfurization process and apparatus | Jing Luo, Xiangjun Xu, Yongying Luo | 2020-02-18 |
| 10413865 | Ammonia-based desulfurization process and apparatus | Jing Luo, Xiangjun Xu, Yongying Luo | 2019-09-17 |
| 10413864 | Method and apparatus for removing sulfur oxides from gas | Jing Luo | 2019-09-17 |
| 10406478 | Ammonia-based desulfurization process and apparatus | Jing Luo, Xiangjun Xu, Yongying Luo | 2019-09-10 |
| 10406477 | Method and apparatus for removing sulfur oxides from gas | Jing Luo | 2019-09-10 |
| 10399033 | Ammonia-based desulfurization process and apparatus | Jing Luo, Xiangjun Xu, Yongying Luo | 2019-09-03 |
| 10207220 | Method and apparatus for removing sulfur oxides from gas | Jing Luo | 2019-02-19 |
| 10016721 | Ammonia-based desufurization process and apparatus | Jing Luo, Xiangjun Xu, Yongying Luo | 2018-07-10 |
| 9370745 | Flue gas-treating method and apparatus for treating acidic tail gas by using ammonia process | Jing Luo, Guoguang FU, Yanzhong Xu | 2016-06-21 |
| 9175778 | Sealing microsawtooth ring joint of two opposing surfaces | — | 2015-11-03 |
| 8864105 | Ball valve seats and ball valves designed with equilateral triangle section methods | Mao Xu, Zhanji Chen | 2014-10-21 |
| 8714599 | Sealing microsawtooth ring joint of two opposing surfaces | — | 2014-05-06 |
| 8439330 | Stem shoulder seal with double rings and an assembly of independent dual stem seals | Mao YANG, Zhanji Chen | 2013-05-14 |
| 8382067 | Stem seal | — | 2013-02-26 |
| 4997303 | Eccentric dowel pin and pin-adjusted structure in hole type modular tooling systems | Ruixing Zhuo, Qiulin Yu | 1991-03-05 |
| 4961268 | Modular method and system for setting fixed-angles of modular tools | Oiulin Yu, Ruixing Zhuo | 1990-10-09 |