- All sections
- H - Electricity
- H01P - Waveguidesresonators, lines or other devices of the waveguide type
- H01P 1/209 - Hollow waveguide filters comprising one or more branching arms or cavities wholly outside the main waveguide
Patent holdings for IPC class H01P 1/209
Total number of patents in this class: 23
10-year publication summary
|
1
|
3
|
1
|
5
|
0
|
4
|
1
|
4
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 37312 |
4 |
| Telefonaktiebolaget LM Ericsson (publ) | 28880 |
3 |
| Ericsson | 22995 |
2 |
| Lockheed Martin Corporation | 3254 |
2 |
| Fujitsu Limited | 16851 |
1 |
| Murata Manufacturing Co., Ltd. | 25893 |
1 |
| Nippon Telegraph and Telephone Corporation | 15933 |
1 |
| Fujikura Ltd. | 3117 |
1 |
| Furuno Electric Co., Ltd. | 1002 |
1 |
| Gemtek Technology Co., Ltd. | 72 |
1 |
| Inter-university Research Institute Corporation National Institutes of Natural Sciences | 150 |
1 |
| Pro Brand International (Europe) Limited | 6 |
1 |
| Universal Microwave Technology, Inc. | 14 |
1 |
| The University of Chicago | 1504 |
1 |
| Sweden Quantum AB | 3 |
1 |
| Aptiv Technologies AG | 2322 |
1 |
| Other owners | 0 |