- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 23/12 - Steps
Patent holdings for IPC class B66B 23/12
Total number of patents in this class: 132
10-year publication summary
17
|
9
|
17
|
15
|
11
|
11
|
16
|
2
|
4
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Otis Elevator Company | 2677 |
25 |
Inventio AG | 2314 |
24 |
Mitsubishi Electric Corporation | 43934 |
16 |
Mitsubishi Electric Building Techno-Service Co., Ltd. | 427 |
6 |
China University of Mining and Technology | 1189 |
3 |
Toshiba Elevator Kabushiki Kaisha | 101 |
3 |
Kone Oyj | 2000 |
3 |
Hitachi, Ltd. | 16452 |
2 |
Georg Fischer Automotive (Suzhou) Co Ltd | 4 |
2 |
Georg Fischer GmbH | 6 |
2 |
Georg Fischer GmbH & Co KG | 7 |
2 |
Goldstein Biomedical Consultants LLC | 3 |
2 |
ThyssenKrupp Elevator AG | 217 |
2 |
ThyssenKrupp Elevator Innovation Center, S.A. | 40 |
2 |
Georg Fischer Druckguss GmbH | 2 |
2 |
GF Casting Solutions Altenmarkt GmbH & Co. KG | 4 |
2 |
GF Casting Solutions Herzogenburg Hpdc GmbH | 4 |
2 |
GF Casting Solutions Suzhou Co. Ltd. | 4 |
2 |
GF Casting Solutions Wedohl GmbH | 3 |
2 |
Sekou center TAIYO Ltd. | 2 |
2 |
Other owners | 26 |