- All sections
- G - Physics
- G05F - Systems for regulating electric or magnetic variables
- G05F 1/153 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch controlled by discharge tubes or semiconductor devices
Patent holdings for IPC class G05F 1/153
Total number of patents in this class: 13
10-year publication summary
|
1
|
1
|
0
|
0
|
4
|
2
|
0
|
0
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rohm Co., Ltd. | 5843 |
2 |
| Hubbell Incorporated | 3052 |
2 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| NPX B.V. | 2204 |
1 |
| Siemens Energy, Inc. | 1770 |
1 |
| General Electric Technology GmbH | 1657 |
1 |
| Haier US Appliance Solutions, Inc. | 3178 |
1 |
| Schweitzer Engineering Laboratories, Inc. | 920 |
1 |
| Semiconductor Manufacturing International Corp. | 76 |
1 |
| Tessera Advanced Technologies, Inc. | 94 |
1 |
| Hitachi Energy Ltd. | 1921 |
1 |
| Other owners | 0 |