- All sections
- G - Physics
- G05F - Systems for regulating electric or magnetic variables
- G05F 1/445 - Regulating voltage or current wherein the variable is actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only being transistors in series with the load
Patent holdings for IPC class G05F 1/445
Total number of patents in this class: 53
10-year publication summary
|
3
|
2
|
1
|
5
|
11
|
5
|
8
|
10
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hunter Industries, Inc. | 298 |
4 |
| Qualcomm Incorporated | 76576 |
3 |
| Texas Instruments Incorporated | 19376 |
2 |
| Makita Corporation | 2339 |
2 |
| Tactotek Oy | 154 |
2 |
| Nisshinbo Micro Devices Inc. | 100 |
2 |
| Toshiba Corporation | 12017 |
1 |
| Ericsson | 20417 |
1 |
| Hewlett-Packard Development Company, L.P. | 28538 |
1 |
| Industrial Technology Research Institute | 4898 |
1 |
| Infineon Technologies AG | 8189 |
1 |
| SK Hynix Inc. | 11030 |
1 |
| NPX B.V. | 2204 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
| Rohm Co., Ltd. | 5843 |
1 |
| Semiconductor Components Industries, L.L.C. | 5345 |
1 |
| STMicroelectronics (Rousset) SAS | 952 |
1 |
| Microsoft Technology Licensing, LLC | 51439 |
1 |
| Realtek Semiconductor Corp. | 3028 |
1 |
| ARM Limited | 4353 |
1 |
| Other owners | 24 |