- All sections
- H - Electricity
- H01F - Magnetsinductancestransformersselection of materials for their magnetic properties
- H01F 19/02 - Audio-frequency transformers or mutual inductances, i.e. not suitable for handling frequencies considerably beyond the audio range
Patent holdings for IPC class H01F 19/02
Total number of patents in this class: 3
10-year publication summary
|
0
|
0
|
1
|
0
|
1
|
1
|
0
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Philip Morris Products S.A. | 7978 |
1 |
| The University of British Columbia | 1530 |
1 |
| Audio Accessories Group, LLC | 7 |
1 |
| Other owners | 0 |