- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 99/00 - Subject matter not provided for in other groups of this subclass
Patent holdings for IPC class H03F 99/00
Total number of patents in this class: 174
10-year publication summary
|
16
|
3
|
3
|
3
|
3
|
3
|
3
|
1
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cirrus Logic, Inc. | 1804 |
17 |
| Bose Corporation | 3092 |
9 |
| Qualcomm Incorporated | 92416 |
7 |
| Texas Instruments Incorporated | 19653 |
6 |
| Rohm Co., Ltd. | 6837 |
6 |
| Crestron Electronics Inc. | 719 |
6 |
| Cirrus Logic International Semiconductor Ltd. | 915 |
5 |
| Hewlett-Packard Development Company, L.P. | 25180 |
4 |
| Yamaha Corporation | 4073 |
4 |
| Toshiba Corporation | 12569 |
3 |
| HTC Corporation | 2419 |
3 |
| Fortemedia, Inc. | 126 |
3 |
| Harman International Industries, Incorporated | 2878 |
3 |
| Logitech Europe S.A. | 1405 |
3 |
| Apple Inc. | 58885 |
2 |
| Robert Bosch GmbH | 44176 |
2 |
| Infineon Technologies AG | 8402 |
2 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
2 |
| Mediatek Inc. | 5340 |
2 |
| Semiconductor Components Industries, L.L.C. | 5263 |
2 |
| Other owners | 83 |