- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/26 - Means for detecting the presence of an arc or other discharge
Patent holdings for IPC class H01H 33/26
Total number of patents in this class: 57
10-year publication summary
|
3
|
7
|
6
|
2
|
5
|
8
|
2
|
2
|
2
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24568 |
7 |
| Mitsubishi Electric Corporation | 45752 |
7 |
| Schneider Electric USA, Inc. | 1276 |
4 |
| ABB Schweiz AG | 6873 |
3 |
| Carrier Corporation | 4364 |
2 |
| Bombardier Transportation GmbH | 648 |
2 |
| General Electric Technology GmbH | 1457 |
2 |
| Schneider Electric Industries SAS | 1471 |
2 |
| Hyundai Electric & Energy Systems Co., Ltd | 53 |
2 |
| Pratt & Whitney Canada Corp. | 4533 |
1 |
| Hamilton Sundstrand Corporation | 4826 |
1 |
| ABB S.p.A. | 445 |
1 |
| Astronics Advanced Electronic Systems Corp. | 96 |
1 |
| DTI Group Limited | 12 |
1 |
| Leach International Europe SA | 3 |
1 |
| Maschinenfabrik Reinhausen GmbH | 748 |
1 |
| Nitto Kogyo Corporation | 44 |
1 |
| North China Electric Power University | 171 |
1 |
| Powell Electrical Systems, Inc. | 61 |
1 |
| Siemens Ltd., China | 811 |
1 |
| Other owners | 15 |