- All sections
- H - Electricity
- H03D - Demodulation or transference of modulation from one carrier to another
- H03D 7/18 - Modifications of frequency-changers for eliminating image frequencies
Patent holdings for IPC class H03D 7/18
Total number of patents in this class: 83
10-year publication summary
|
4
|
4
|
1
|
3
|
4
|
2
|
2
|
5
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Qualcomm Incorporated | 81758 |
12 |
| Telefonaktiebolaget LM Ericsson (publ) | 27389 |
10 |
| Panasonic Corporation | 20322 |
5 |
| NEC Corporation | 34371 |
3 |
| Ericsson | 21125 |
3 |
| Mitsubishi Electric Corporation | 44794 |
3 |
| Huawei Technologies Co., Ltd. | 106664 |
3 |
| ViaSat, Inc. | 1609 |
3 |
| RDA Technologies Limited | 2 |
2 |
| Solid, Inc. | 302 |
2 |
| NXP B.V. | 2180 |
2 |
| Swiftlink Technologies Inc. | 63 |
2 |
| Samsung Electronics Co., Ltd. | 138729 |
1 |
| The Regents of the University of California | 19503 |
1 |
| Nokia Corporation | 6167 |
1 |
| Matsushita Electric Industrial Co., Ltd. | 2890 |
1 |
| Sumitomo Electric Industries, Ltd. | 14956 |
1 |
| Fujitsu Limited | 18415 |
1 |
| Murata Manufacturing Co., Ltd. | 23680 |
1 |
| Raytheon Company | 8435 |
1 |
| Other owners | 25 |