- All sections
- H - Electricity
- H01H - Electric switchesrelaysselectorsemergency protective devices
- H01H 33/16 - Impedances connected with contacts
Patent holdings for IPC class H01H 33/16
Total number of patents in this class: 117
10-year publication summary
|
8
|
10
|
15
|
9
|
10
|
7
|
3
|
2
|
4
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens AG | 24033 |
25 |
| Siemens Energy Global GmbH & Co. KG | 3335 |
12 |
| ABB Technology AG | 1224 |
9 |
| Mitsubishi Electric Corporation | 47971 |
8 |
| ABB Schweiz AG | 7590 |
7 |
| Hitachi Energy Ltd. | 2568 |
6 |
| ABB Oy | 168 |
5 |
| Alstom Technology Ltd | 1045 |
4 |
| General Electric Technology GmbH | 1336 |
3 |
| Lsis Co., Ltd. | 814 |
3 |
| Supergrid Institute | 89 |
3 |
| Maschinenfabrik Reinhausen GmbH | 582 |
2 |
| Meidensha Corporation | 932 |
2 |
| Schneider Electric Industries SAS | 1592 |
2 |
| Utility Solutions, Inc. | 27 |
2 |
| General Electric Company | 13888 |
1 |
| Toshiba Corporation | 12548 |
1 |
| ARC Suppression Technologies | 40 |
1 |
| ASCO Power Technologies, L.P. | 83 |
1 |
| China XD Electric Co.,Ltd. | 32 |
1 |
| Other owners | 19 |