- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 23/22 - Balustrades
Patent holdings for IPC class B66B 23/22
Total number of patents in this class: 74
10-year publication summary
5
|
6
|
1
|
2
|
6
|
7
|
7
|
6
|
3
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Otis Elevator Company | 2677 |
16 |
Mitsubishi Electric Corporation | 43934 |
13 |
Inventio AG | 2314 |
13 |
Innova Patent GmbH | 243 |
9 |
TK Elevator Innovation and Operations GmbH | 158 |
5 |
Kone Oyj | 2000 |
4 |
ThyssenKrupp Elevator Innovation Center, S.A. | 40 |
2 |
Beltways, Inc. | 10 |
2 |
The Boeing Company | 19843 |
1 |
EHC Canada, Inc. | 32 |
1 |
Hartman Design, Inc. | 21 |
1 |
Semperit Aktiengesellschaft Holding | 21 |
1 |
Toshiba Elevator Kabushiki Kaisha | 101 |
1 |
Kone Elevators Co., Ltd. | 28 |
1 |
Shenzhen Institute of Special Equipment Inspection and Test | 2 |
1 |
ThyssenKrupp Elevator Innovation and Operations AG | 29 |
1 |
Thyssenkrupp Elevator (ES/PBB) Ltd. | 1 |
1 |
Shanghai Clear Glass Sculpture Co., Ltd. | 1 |
1 |
Other owners | 0 |