- All sections
- G - Physics
- G05F - Systems for regulating electric or magnetic variables
- G05F 1/33 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices with plural windings through which current to be controlled is conducted
Patent holdings for IPC class G05F 1/33
Total number of patents in this class: 28
10-year publication summary
|
4
|
1
|
1
|
4
|
3
|
1
|
2
|
0
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Semiconductor Components Industries, L.L.C. | 5345 |
2 |
| Maschinenfabrik Reinhausen GmbH | 749 |
2 |
| Safran Transmission Systems | 260 |
2 |
| Third Equation Ltd | 13 |
2 |
| Econopower Pty Ltd | 3 |
2 |
| Siemens AG | 24990 |
1 |
| Industrial Technology Research Institute | 4898 |
1 |
| Alstom Technology Ltd | 1196 |
1 |
| Hamilton Sundstrand Corporation | 4525 |
1 |
| Novatek Microelectronics Corp. | 1221 |
1 |
| Acbel Polytech Inc. | 30 |
1 |
| Dynapar Corporation | 49 |
1 |
| Marmon Utility LLC | 54 |
1 |
| O2Micro International Limited | 128 |
1 |
| Schweitzer Engineering Laboratories, Inc. | 920 |
1 |
| University of Hawaii | 225 |
1 |
| uPI Semiconductor Corp. | 121 |
1 |
| UT-Battelle, LLC | 1333 |
1 |
| Volterra Semiconductor LLC | 62 |
1 |
| Eaton Intelligent Power Limited | 6113 |
1 |
| Other owners | 3 |