- All sections
- H - Electricity
- H03H - Impedance networks, e.g. resonant circuits; resonators
- H03H 17/04 - Recursive filters
Patent holdings for IPC class H03H 17/04
Total number of patents in this class: 143
10-year publication summary
|
11
|
19
|
12
|
18
|
17
|
8
|
12
|
8
|
7
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby Laboratories Licensing Corporation | 3883 |
8 |
| Pioneer Corporation | 4843 |
6 |
| Mediatek Inc. | 4584 |
4 |
| Caavo Inc | 89 |
4 |
| John W. Bogdan | 13 |
4 |
| Pagnanelli Family Trust | 37 |
4 |
| Texas Instruments Incorporated | 19376 |
3 |
| Mitsubishi Electric Corporation | 43934 |
3 |
| STMicroelectronics S.r.l. | 3693 |
3 |
| Nokia Technologies Oy | 15057 |
3 |
| MUFG Union Bank, N.A. | 499 |
3 |
| BlackBerry Limited | 5958 |
2 |
| Qualcomm Incorporated | 76576 |
2 |
| Panasonic Corporation | 20786 |
2 |
| Robert Bosch GmbH | 40953 |
2 |
| NPX B.V. | 2204 |
2 |
| Microsoft Technology Licensing, LLC | 51439 |
2 |
| Dialog Semiconductor B.V. | 102 |
2 |
| Dolby International AB | 1076 |
2 |
| Google LLC | 38759 |
2 |
| Other owners | 80 |