- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 3/347 - Dc amplifiers in which all stages are dc-coupled with semiconductor devices only in integrated circuits
Patent holdings for IPC class H03F 3/347
Total number of patents in this class: 42
10-year publication summary
|
5
|
10
|
2
|
2
|
5
|
4
|
3
|
2
|
4
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Skyworks Solutions, Inc. | 3450 |
9 |
| Sony Semiconductor Solutions Corporation | 8770 |
5 |
| Qualcomm Incorporated | 76576 |
4 |
| Micron Technology, Inc. | 24960 |
2 |
| Texas Instruments Incorporated | 19376 |
2 |
| Rohm Co., Ltd. | 5843 |
2 |
| STMicroelectronics S.r.l. | 3693 |
2 |
| Ricoh Company, Ltd. | 13266 |
1 |
| Mitsubishi Electric Corporation | 43934 |
1 |
| Raytheon Company | 8535 |
1 |
| Thomson Licensing | 4027 |
1 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
| Lockheed Martin Corporation | 3406 |
1 |
| Analog Devices, Inc. | 3475 |
1 |
| Nippon Telegraph and Telephone Corporation | 14195 |
1 |
| Sandisk Technologies LLC | 5684 |
1 |
| Allegro Microsystems, LLC | 1206 |
1 |
| Silicon Integrated Systems Corp. | 67 |
1 |
| Universite Catholique de Louvain | 293 |
1 |
| Zetex Semiconductors plc | 9 |
1 |
| Other owners | 3 |