- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 5/18 - Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well and applying frictional retarding forces
Patent holdings for IPC class B66B 5/18
Total number of patents in this class: 318
10-year publication summary
|
29
|
21
|
41
|
35
|
29
|
35
|
28
|
21
|
17
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Otis Elevator Company | 2677 |
85 |
| Inventio AG | 2314 |
70 |
| Kone Oyj | 2000 |
20 |
| ThyssenKrupp Elevator AG | 217 |
14 |
| Mitsubishi Electric Corporation | 43934 |
11 |
| ThyssenKrupp AG | 3086 |
9 |
| Wittur Holding GmbH | 99 |
9 |
| MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
5 |
| Hitachi, Ltd. | 16452 |
4 |
| Dynatech, Dynamics & Technology, S.L. | 9 |
4 |
| Cobianchi Liftteile AG | 6 |
4 |
| ABB Schweiz AG | 6321 |
3 |
| Chr. Mayr GmbH & Co. KG | 86 |
3 |
| Gumyoung General Co., Ltd. | 7 |
3 |
| Wurtec, Incorporated | 16 |
3 |
| Wabi Iron & Steel Corp. | 3 |
3 |
| ThyssenKrupp Elevator Innovation and Operations AG | 29 |
3 |
| Human NT Co.,Ltd. | 4 |
3 |
| thyssenkrupp Elevator Innovation and Operations GmbH | 59 |
3 |
| AIP ApS | 20 |
2 |
| Other owners | 57 |