- All sections
- H - Electricity
- H03B - Generation of oscillations, directly or by frequency-changing, by circuits employing active elements which operate in a non-switching manner; generation of noise by such circuits
- H03B 5/32 - Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
Patent holdings for IPC class H03B 5/32
Total number of patents in this class: 867
10-year publication summary
|
78
|
99
|
78
|
68
|
72
|
60
|
78
|
51
|
44
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Seiko Epson Corporation | 18989 |
210 |
| Daishinku Corporation | 232 |
50 |
| Nihon Dempa Kogyo Co., Ltd. | 253 |
44 |
| Murata Manufacturing Co., Ltd. | 23702 |
42 |
| Texas Instruments Incorporated | 19432 |
30 |
| Kyocera Corporation | 13344 |
17 |
| Seiko Instruments Inc. | 516 |
14 |
| Samsung Electronics Co., Ltd. | 139001 |
11 |
| Intel Corporation | 46126 |
11 |
| Integrated Device Technology, Inc. | 702 |
10 |
| Ericsson | 21144 |
8 |
| HRL Laboratories, LLC | 1583 |
8 |
| Huawei Technologies Co., Ltd. | 106762 |
7 |
| Analog Devices, Inc. | 3424 |
7 |
| Silicon Laboratories Inc. | 1123 |
7 |
| Microchip Technology Incorporated | 2715 |
7 |
| Shenzhen Goodix Technology Co., Ltd. | 2260 |
7 |
| Apple Inc. | 52750 |
6 |
| Qualcomm Incorporated | 81865 |
6 |
| Panasonic Corporation | 20315 |
6 |
| Other owners | 359 |