| 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 |