- All sections
- H - Electricity
- H01H - Electric switches; relays; selectors; emergency protective devices
- H01H 9/28 - Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
Patent holdings for IPC class H01H 9/28
Total number of patents in this class: 316
10-year publication summary
|
28
|
40
|
25
|
32
|
30
|
19
|
12
|
19
|
6
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eaton Intelligent Power Limited | 6300 |
37 |
| Lutron Technology Company LLC | 2424 |
28 |
| Siemens AG | 24565 |
11 |
| ABB Schweiz AG | 6632 |
8 |
| Rockwell Automation Technologies, Inc. | 2654 |
7 |
| Siemens Industry, Inc. | 1430 |
7 |
| Master Lock Company LLC | 507 |
7 |
| ABB S.p.A. | 450 |
6 |
| Brady Worldwide, Inc. | 422 |
6 |
| The Boeing Company | 19911 |
5 |
| Whirlpool Corporation | 4333 |
5 |
| Lutron Electronics Co., Inc. | 540 |
5 |
| Schneider Electric USA, Inc. | 1267 |
5 |
| Robert Bosch GmbH | 41786 |
4 |
| Alstom Technology Ltd | 1145 |
4 |
| Accuform Manufacturing, Inc. | 5 |
4 |
| The Eastern Company | 188 |
4 |
| Eaton Electrical IP GmbH & Co. KG | 157 |
4 |
| Leviton Manufacturing Co., Inc. | 825 |
4 |
| Schneider Electric Industries SAS | 1442 |
4 |
| Other owners | 151 |