- All sections
- H - Electricity
- H01P - Waveguidesresonators, lines or other devices of the waveguide type
- H01P 1/218 - Frequency-selective devices, e.g. filters using ferromagnetic material the ferromagnetic material acting as a frequency selective coupling element, e.g. YIG-filters
Patent holdings for IPC class H01P 1/218
Total number of patents in this class: 44
10-year publication summary
|
0
|
3
|
4
|
7
|
3
|
3
|
4
|
3
|
2
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TDK Corporation | 6874 |
8 |
| Metamagnetics, Inc. | 24 |
6 |
| Raytheon Company | 8395 |
4 |
| ROHDE & Schwarz GmbH & Co. KG | 1956 |
4 |
| Wisconsin Alumni Research Foundation | 3884 |
2 |
| Integrated Microwave Corporation | 7 |
2 |
| Lucent Technologies Inc. | 681 |
1 |
| Rockwell Collins, Inc. | 2511 |
1 |
| Brno University of Technology | 12 |
1 |
| Consejo Superior de Investigaciones Cientificas (csic) | 1380 |
1 |
| IMEC VZW | 1666 |
1 |
| Katholieke Universiteit Leuven K.u. Leuven R & D | 211 |
1 |
| Kuang-chi Innovative Technology Ltd. | 208 |
1 |
| Kuang-chi Institute of Advanced Technology | 186 |
1 |
| Universidade do Porto | 274 |
1 |
| Universitaet Hamburg | 22 |
1 |
| Universitat Wien | 80 |
1 |
| University of Notre Dame du Lac | 578 |
1 |
| Micro Lambda Wireless, Inc. | 5 |
1 |
| Seoul National University R&db Foundation | 3678 |
1 |
| Other owners | 4 |