- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/70 - Charge amplifiers
Patent holdings for IPC class H03F 3/70
Total number of patents in this class: 139
10-year publication summary
|
12
|
11
|
4
|
11
|
9
|
21
|
17
|
9
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ams International AG | 399 |
8 |
| Sony Semiconductor Solutions Corporation | 8770 |
7 |
| Texas Instruments Incorporated | 19376 |
6 |
| Murata Manufacturing Co., Ltd. | 22355 |
6 |
| STMicroelectronics S.r.l. | 3693 |
5 |
| Fuji Electric Co., Ltd. | 4750 |
5 |
| Politecnico di Milano | 790 |
5 |
| Isotopx Ltd | 14 |
5 |
| SiTime Corporation | 181 |
4 |
| Samsung Display Co., Ltd. | 30585 |
3 |
| Texas Instruments Japan, Ltd. | 1656 |
3 |
| STMicroelectronics, Inc. | 886 |
3 |
| Knowles Electronics, LLC | 597 |
3 |
| Sony Corporation | 32931 |
2 |
| International Business Machines Corporation | 60644 |
2 |
| Raytheon Company | 8535 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
2 |
| Nippon Telegraph and Telephone Corporation | 14195 |
2 |
| Novatek Microelectronics Corp. | 1221 |
2 |
| ams AG | 807 |
2 |
| Other owners | 62 |