- All sections
- H - Electricity
- H01Q - Antennas, i.e. radio aerials
- H01Q 13/28 - Non-resonant leaky-waveguide or transmission-line antennas Equivalent structures causing radiation along the transmission path of a guided wave comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric
Patent holdings for IPC class H01Q 13/28
Total number of patents in this class: 190
10-year publication summary
|
21
|
18
|
19
|
18
|
6
|
9
|
13
|
6
|
7
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| AT&T Intellectual Property I, L.P. | 10002 |
11 |
| The Boeing Company | 20163 |
8 |
| The Invention Science Fund I, LLC | 162 |
7 |
| Huawei Technologies Co., Ltd. | 123543 |
5 |
| Conti Temic microelectronic GmbH | 797 |
5 |
| ViaSat, Inc. | 1727 |
5 |
| Echodyne Corp. | 31 |
4 |
| Thinkom Solutions, Inc. | 70 |
4 |
| NEC Corporation | 37005 |
3 |
| Denso Corporation | 25579 |
3 |
| Raytheon Company | 8448 |
3 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
3 |
| Searete LLC | 211 |
3 |
| Knowles Cazenovia Inc. | 51 |
3 |
| Oxbridge Pulsar Sources Limited | 4 |
3 |
| Universite Catholique de Louvain | 295 |
3 |
| The University of Birmingham | 418 |
3 |
| WorldWide Antenna Systems LLC | 7 |
3 |
| Samsung Electronics Co., Ltd. | 157946 |
2 |
| Fujitsu Limited | 16883 |
2 |
| Other owners | 107 |