- All sections
- H - Electricity
- H01P - Waveguidesresonators, lines or other devices of the waveguide type
- H01P 1/397 - Circulators using non-reciprocal phase shifters
Patent holdings for IPC class H01P 1/397
Total number of patents in this class: 31
10-year publication summary
|
1
|
1
|
8
|
2
|
3
|
3
|
8
|
1
|
2
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Telegraph and Telephone Corporation | 17109 |
5 |
| Skyworks Solutions, Inc. | 3702 |
4 |
| Trans-tech, Inc. | 32 |
3 |
| Allumax TTI, LLC | 42 |
3 |
| The Board of Trustees of the Leland Stanford Junior University | 6347 |
2 |
| The Trustees of Columbia University in the City of New York | 3558 |
2 |
| Huawei Technologies Canada Co., Ltd. | 247 |
2 |
| Analog Quantum Circuits Pty Limited | 3 |
2 |
| The Regents of the University of California | 19803 |
1 |
| Intel Corporation | 46678 |
1 |
| Huawei Technologies Co., Ltd. | 110803 |
1 |
| California Institute of Technology | 3966 |
1 |
| Board of Regents, The University of Texas System | 5745 |
1 |
| Futurewei Technologies, Inc. | 3746 |
1 |
| HRL Laboratories, LLC | 1598 |
1 |
| Northeastern University | 1174 |
1 |
| Other owners | 0 |