- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency 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
|
37
|
25
|
31
|
25
|
18
|
12
|
19
|
8
|
8
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Eaton Intelligent Power Limited | 6132 |
36 |
| Lutron Technology Company LLC | 2683 |
32 |
| Siemens AG | 24329 |
12 |
| ABB Schweiz AG | 7353 |
8 |
| Rockwell Automation Technologies, Inc. | 2719 |
7 |
| Siemens Industry, Inc. | 1585 |
7 |
| Brady Worldwide, Inc. | 763 |
7 |
| ABB S.p.A. | 440 |
6 |
| Master Lock Company LLC | 541 |
6 |
| The Boeing Company | 20110 |
5 |
| Whirlpool Corporation | 4533 |
5 |
| Lutron Electronics Co., Inc. | 536 |
5 |
| Schneider Electric USA, Inc. | 1334 |
5 |
| Robert Bosch GmbH | 43385 |
4 |
| Alstom Technology Ltd | 1072 |
4 |
| Accuform Manufacturing, Inc. | 5 |
4 |
| Eaton Electrical IP GmbH & Co. KG | 157 |
4 |
| Leviton Manufacturing Co., Inc. | 816 |
4 |
| Schneider Electric Industries SAS | 1548 |
4 |
| Eaton Corporation | 1811 |
3 |
| Other owners | 148 |