- 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: 30
10-year publication summary
|
1
|
1
|
4
|
3
|
1
|
2
|
0
|
0
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Semiconductor Components Industries, L.L.C. | 5253 |
2 |
| Maschinenfabrik Reinhausen GmbH | 744 |
2 |
| Safran Transmission Systems | 309 |
2 |
| Third Equation Ltd | 12 |
2 |
| Econopower Pty Ltd | 3 |
2 |
| Siemens AG | 24520 |
1 |
| Industrial Technology Research Institute | 5085 |
1 |
| Alstom Technology Ltd | 1109 |
1 |
| Hamilton Sundstrand Corporation | 4853 |
1 |
| Novatek Microelectronics Corp. | 1321 |
1 |
| Acbel Polytech Inc. | 40 |
1 |
| Dynapar Corporation | 51 |
1 |
| Marmon Utility LLC | 59 |
1 |
| O2Micro International Limited | 116 |
1 |
| Schweitzer Engineering Laboratories, Inc. | 914 |
1 |
| University of Hawaii | 229 |
1 |
| uPI Semiconductor Corp. | 124 |
1 |
| UT-Battelle, LLC | 1448 |
1 |
| Victoria Link Limited | 183 |
1 |
| Volterra Semiconductor LLC | 61 |
1 |
| Other owners | 5 |