Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12371303 | Maintenance trajectory tracing for elevator system | Ke Yang | 2025-07-29 |
| 12305895 | Heat pump system and method for implementing efficient evaporation by using geothermal well | Fangming Jiang, Juanwen Chen, Jiwen Cen, Wenjiong Cao | 2025-05-20 |
| 12240732 | Notification system and method for an elevator and an elevator system | Lieping Wei, Heping Qiu, Jingyu Tong | 2025-03-04 |
| 12152810 | Heat-pipe type heat extraction integrated with combined cooling power and heating exploitation-utilization integrated geothermal system | Fangming Jiang, Juanwen Chen, Jiwen Cen, Wenjiong Cao | 2024-11-26 |
| 12111448 | Optical camera system | Lingbo He, Fujian Dai, Liefeng Zhao | 2024-10-08 |
| 11964847 | System and method for detecting passengers movement, elevator-calling control method, readable storage medium and elevator system | Lieping Wei, Heping Qiu | 2024-04-23 |
| 11874439 | Optical imaging lens including seven lenses of −−++−+−, −+++−+− or −−++−++ refractive powers | Lingbo He, Fujian Dai, Liefeng Zhao | 2024-01-16 |
| 11796765 | Optical imaging system | Lingbo He | 2023-10-24 |
| 11643299 | Communication system and method for elevator system | Xiaofei Guo | 2023-05-09 |
| 11598936 | Optical imaging lens assembly | Lingbo He, Fujian Dai, Liefeng Zhao | 2023-03-07 |
| 11584613 | Determination for motion of passenger over elevator landing area | Xiaofei Guo | 2023-02-21 |
| 11584616 | Maintenance of passenger carrying system | Ke Yang | 2023-02-21 |
| 11577930 | Automatic elevator calling system and a method for controlling automatic calling elevator | Xiaofei Guo, Haiyan Xue, Renxiang Chen, Heping Qiu, Lieping Wei +2 more | 2023-02-14 |
| 11524867 | Determination of non-normal elevator calling request in an automatic elevator calling request system | Xiaofei Guo, Haiyan Xue, Renxiang Chen, Heping Qiu, Lieping Wei +2 more | 2022-12-13 |
| D966701 | Crossbody bag | — | 2022-10-18 |
| 11447366 | Determination for motion of passenger over elevator car | Xiaofei Guo | 2022-09-20 |
| 11440768 | Acquisition of position of elevator car | Lieping Wei, XiaoBin Tang | 2022-09-13 |
| D963333 | Backpack | — | 2022-09-13 |
| 11408646 | Ladder-structural gravity-assisted-heat-pipe geothermal energy recovery system without liquid-accumulation effect | Fangming Jiang, Wenjiong Cao, Yiwei Wang | 2022-08-09 |
| 11332341 | Personal mobile terminal and a method of requesting elevator service | Jingyu Tong, Lieping Wei | 2022-05-17 |
| 10589961 | Maintenance monitoring of passenger carrying system | Ke Yang | 2020-03-17 |