- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 5/12 - Applications of checking, fault-correcting or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
Patent holdings for IPC class B66B 5/12
Total number of patents in this class: 110
10-year publication summary
|
14
|
4
|
11
|
9
|
8
|
6
|
11
|
5
|
5
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
37 |
| Inventio AG | 2314 |
18 |
| Kone Oyj | 2000 |
14 |
| Otis Elevator Company | 2677 |
12 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 427 |
7 |
| Pflow Industries, Inc. | 14 |
2 |
| Wurtec, Incorporated | 16 |
2 |
| thyssenkrupp Elevator Innovation and Operations GmbH | 59 |
2 |
| Shimadzu Corporation | 5791 |
1 |
| AIP ApS | 20 |
1 |
| China University of Mining and Technology | 1189 |
1 |
| Heftee Industries, LLC Ltd | 1 |
1 |
| JLG Industries, Inc. | 256 |
1 |
| Knight Industries | 5 |
1 |
| Quality Vision International, Inc. | 131 |
1 |
| SafeWorks, LLC | 80 |
1 |
| US Tower Corporation | 19 |
1 |
| Canny Elevator Co., Ltd. | 20 |
1 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
1 |
| Jiangsu Montmery Elevator Co.,Ltd. | 21 |
1 |
| Other owners | 4 |