- All sections
- B - Performing operations; transporting
- B66B - Elevators; escalators or moving walkways
- B66B 3/02 - Position or depth indicators
Patent holdings for IPC class B66B 3/02
Total number of patents in this class: 255
10-year publication summary
14
|
23
|
20
|
24
|
28
|
35
|
16
|
18
|
17
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
121 |
Otis Elevator Company | 2677 |
29 |
Hitachi, Ltd. | 16452 |
24 |
Inventio AG | 2314 |
19 |
Kone Oyj | 2000 |
9 |
MITSUBISHI DENKI KABUSHIKI KAISHA also trading as Mitsubishi Electric Corporation | 1082 |
7 |
CEDES AG | 79 |
5 |
Jiangsu Welm Technology Co., Ltd | 17 |
3 |
Mitsubishi Electric Building Solutions Corporation | 222 |
3 |
Hitachi Building Systems Co., Ltd. | 45 |
2 |
Magnetek, Inc. | 89 |
2 |
Mitsubishi Electric Building Techno-Service Co., Ltd. | 427 |
2 |
ThyssenKrupp Elevator Corporation | 33 |
2 |
Legends Attractions, LLC | 8 |
2 |
TK Elevator Innovation and Operations GmbH | 158 |
2 |
TK Elevator Corporation | 23 |
2 |
Sony Corporation | 32931 |
1 |
Honeywell International Inc. | 13799 |
1 |
Articulated Funiculator AB | 5 |
1 |
Ewha University-industry Collaboration Foundation | 617 |
1 |
Other owners | 17 |