Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12152575 | Hydraulic end assembly structure of a plunger pump | Baoguo Jian, Haiping Cui, Wenping Cui | 2024-11-26 |
| 12085073 | Valve spring fixing device and plunger pump | Wenjie Deng, Baoguo Jian, Peng Li, Jixin Wang, Xiaosong Wei +4 more | 2024-09-10 |
| 12050822 | Access request response method, consumable chip, and storage medium | Liang Chen | 2024-07-30 |
| 11914309 | Toner cartridge | — | 2024-02-27 |
| 11890874 | Nozzle ink cartridge, circuit substrate, and nozzle ink cartridge assembly | — | 2024-02-06 |
| 11698063 | Hydraulic end assembly structure of a plunger pump | Baoguo Jian, Haiping Cui, Wenping Cui | 2023-07-11 |
| 11607889 | Remanufactured ink cartridge and electronic patch | Tao Gao, Fengjun Song | 2023-03-21 |
| 11519405 | Valve spring seat sleeve, valve assembly and plunger pump | Wenjie Deng, Baoguo Jian, Haiping Cui, Peng Li, Jixin Wang | 2022-12-06 |
| 10682860 | Ink cartridge, ink cartridge chip, and short-circuit detection method of chip | Zuo Wang | 2020-06-16 |
| 10585633 | Method for recording chip usage state information, chip of imaging cartridge and imaging cartridge | — | 2020-03-10 |
| 10162582 | Method for recording chip usage state information, chip of imaging cartridge and imaging cartridge | — | 2018-12-25 |
| 10155393 | Ink cartridge, ink cartridge chip, and short-circuit detection method of chip | Zuo Wang | 2018-12-18 |
| 9796187 | Method for controlling light emission of ink cartridge, and ink cartridge | Lei Qin, Zhizheng Jia, Yuedan Liang | 2017-10-24 |
| 9753680 | Method for recording chip usage state information, chip of imaging cartridge and imaging cartridge | — | 2017-09-05 |
| 9724928 | Method, system and memory chip for generating checkout value | — | 2017-08-08 |
| 9688075 | Ink cartridge, ink cartridge chip, and short-circuit detection method of chip | Zuo Wang | 2017-06-27 |
| 9446598 | Method and apparatus for controlling light emission of ink cartridge | Lei Qin, Zhizheng Jia, Yuedan Liang | 2016-09-20 |
| 9108419 | Method for controlling ink cartridge chip, ink cartridge chip and ink cartridge | Hao Chen | 2015-08-18 |