- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 7/12 - Checking, lubricating, or cleaning means for ropes, cables, or guides
Patent holdings for IPC class B66B 7/12
Total number of patents in this class: 379
10-year publication summary
|
32
|
32
|
50
|
43
|
53
|
36
|
40
|
20
|
22
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kone Oyj | 2000 |
86 |
| Inventio AG | 2314 |
80 |
| Otis Elevator Company | 2677 |
61 |
| Mitsubishi Electric Corporation | 43934 |
39 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 427 |
10 |
| Shimadzu Corporation | 5791 |
8 |
| TK Elevator Innovation and Operations GmbH | 158 |
8 |
| Konecranes Global Corporation | 484 |
6 |
| Meidensha Corporation | 823 |
6 |
| Liebherr-components Biberach GmbH | 223 |
5 |
| ThyssenKrupp Elevator AG | 217 |
4 |
| China University of Mining and Technology | 1189 |
3 |
| ContiTech Antriebssysteme GmbH | 244 |
3 |
| Nippon Otis Elevator Company | 6 |
3 |
| ThyssenKrupp AG | 3086 |
3 |
| Tankbots, Inc. | 19 |
3 |
| Mitsubishi Electric Building Solutions Corporation | 222 |
3 |
| Bridon International Ltd. | 72 |
2 |
| Dinacell Electrónica, S.L. | 18 |
2 |
| IHC Holland IE B.V. | 277 |
2 |
| Other owners | 42 |