- All sections
- H - Electricity
- H03F - Amplifiers
- H03F 1/38 - Positive-feedback circuit arrangements without negative feedback
Patent holdings for IPC class H03F 1/38
Total number of patents in this class: 61
10-year publication summary
|
5
|
4
|
5
|
5
|
8
|
7
|
4
|
3
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Texas Instruments Incorporated | 19647 |
7 |
| Huawei Technologies Co., Ltd. | 123677 |
4 |
| Texas Instruments Japan, Ltd. | 1656 |
2 |
| Atmel Corporation | 784 |
2 |
| BAE Systems Information and Electronic Systems Integration Inc. | 1922 |
2 |
| Dockon AG | 8 |
2 |
| InvenSense, Inc. | 1208 |
2 |
| Quantalrf AG | 28 |
2 |
| Samsung Electronics Co., Ltd. | 158156 |
1 |
| Apple Inc. | 58936 |
1 |
| Qualcomm Incorporated | 92563 |
1 |
| NEC Corporation | 37064 |
1 |
| Ericsson | 22815 |
1 |
| Infineon Technologies AG | 8405 |
1 |
| Mitsubishi Electric Corporation | 48097 |
1 |
| ZTE Corporation | 44219 |
1 |
| Analog Devices, Inc. | 3321 |
1 |
| Motorola Solutions, Inc. | 4581 |
1 |
| Realtek Semiconductor Corp. | 3505 |
1 |
| Cirrus Logic, Inc. | 1805 |
1 |
| Other owners | 26 |