- All sections
- H - Electricity
- H03J - Tuning resonant circuits; selecting resonant circuits
- H03J 3/18 - Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
Patent holdings for IPC class H03J 3/18
Total number of patents in this class: 23
10-year publication summary
|
1
|
4
|
6
|
3
|
3
|
0
|
1
|
1
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Skyworks Solutions, Inc. | 3450 |
3 |
| Qualcomm Incorporated | 76576 |
1 |
| Siemens AG | 24990 |
1 |
| The Regents of the University of California | 18943 |
1 |
| International Business Machines Corporation | 60644 |
1 |
| Seiko Epson Corporation | 18724 |
1 |
| GM Global Technology Operations LLC | 13620 |
1 |
| Epcos AG | 778 |
1 |
| The General Hospital Corporation | 4517 |
1 |
| Silicon Laboratories Inc. | 1107 |
1 |
| University of Florida Research Foundation, Inc. | 3883 |
1 |
| Board of Trustees of Michigan State University | 1141 |
1 |
| Fagor Electrotecnica. S.Coop. | 1 |
1 |
| Gwangju Institute of Science and Technology | 703 |
1 |
| The Hong Kong University of Science and Technology | 638 |
1 |
| Lsis Co., Ltd. | 834 |
1 |
| Schneider Electric Industries SAS | 1376 |
1 |
| Psemi Corporation | 898 |
1 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
1 |
| UCL Business Ltd | 493 |
1 |
| Other owners | 1 |