- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/53 - CasesReservoirs, tanks, piping or valves, for arc-extinguishing fluidAccessories therefor, e.g. safety arrangements, pressure relief devices
Patent holdings for IPC class H01H 33/53
Total number of patents in this class: 137
10-year publication summary
|
10
|
5
|
16
|
13
|
11
|
15
|
16
|
9
|
11
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 44904 |
11 |
| Hitachi Energy Ltd. | 2236 |
11 |
| Siemens AG | 24568 |
9 |
| ABB Schweiz AG | 6635 |
8 |
| LS ELECTRIC Co., Ltd | 603 |
7 |
| Lsis Co., Ltd. | 817 |
6 |
| Schneider Electric Industries SAS | 1444 |
6 |
| S&C Electric Company | 177 |
5 |
| Eaton Intelligent Power Limited | 6308 |
5 |
| Schneider Electric USA, Inc. | 1269 |
4 |
| Siemens Energy Global GmbH & Co. KG | 2843 |
4 |
| ABB S.p.A. | 450 |
3 |
| Carling Technologies, Inc. | 122 |
3 |
| Rockwell Automation Technologies, Inc. | 2667 |
2 |
| Hubbell Incorporated | 3167 |
2 |
| ABB Technology AG | 1270 |
2 |
| Daicel Corporation | 2247 |
2 |
| General Electric Technology GmbH | 1599 |
2 |
| NOJA Power Switchgear Pty Ltd | 16 |
2 |
| Quality Switch, Inc. | 4 |
2 |
| Other owners | 41 |