- All sections
- E - Fixed constructions
- E05B - Locks; accessories therefor; handcuffs
- E05B 37/20 - Puzzle locks
Patent holdings for IPC class E05B 37/20
Total number of patents in this class: 26
10-year publication summary
4
|
8
|
4
|
7
|
1
|
2
|
0
|
2
|
1
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Yifeng Manufacturing Co., Ltd. | 19 |
10 |
Dorel Juvenile Group, Inc. | 294 |
2 |
Shanghai Shengxiang Science and Technology Co., Ltd. | 12 |
2 |
Xiamen Make Security Technology Co., Ltd. | 47 |
2 |
Delta Electronics, Inc. | 2401 |
1 |
Emtek Products, Inc. | 12 |
1 |
Nanjing Easthouse Electrical Co., Ltd | 67 |
1 |
Anhui Cowarobot Co., Ltd | 18 |
1 |
Guangzhou Kingsons Leather Products Co., Ltd | 5 |
1 |
Lantrn Limited | 1 |
1 |
Shanghai Chyra International Trading Co., Ltd | 1 |
1 |
Shen Zhen City Gongyi Technology Co., Ltd | 3 |
1 |
Shenzhen Lanyang Technology Co., Ltd. | 13 |
1 |
Wenzhou Jinjian Intelligent Lock Co. , Ltd. | 3 |
1 |
Other owners | 0 |