- All sections
- H - Electricity
- H04B - Transmission
- H04B 13/02 - Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
Patent holdings for IPC class H04B 13/02
Total number of patents in this class: 501
10-year publication summary
36
|
42
|
40
|
47
|
49
|
46
|
43
|
42
|
32
|
10
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Magseis FF LLC | 159 |
17 |
Csignum Ltd | 19 |
16 |
Halliburton Energy Services, Inc. | 20165 |
11 |
Raytheon Company | 8535 |
11 |
King Abdullah University of Science and Technology | 1703 |
9 |
Woods Hole Oceanographic Institution | 136 |
9 |
Wireless Fibre Systems Ltd | 13 |
9 |
Samsung Electronics Co., Ltd. | 131630 |
8 |
The Boeing Company | 19843 |
8 |
NEC Corporation | 32703 |
8 |
Electronics and Telecommunications Research Institute | 8830 |
8 |
BAE SYSTEMS plc | 2215 |
8 |
Evolution Engineering Inc. | 313 |
8 |
Massachusetts Institute of Technology | 9795 |
7 |
Nippon Telegraph and Telephone Corporation | 14195 |
7 |
CPG Technologies, LLC | 101 |
7 |
Hoseo University Academic Cooperation Foundation | 47 |
7 |
Atlas Elektronik GmbH | 395 |
6 |
Elliptic Works LLC | 9 |
6 |
Schlumberger Technology Corporation | 9690 |
5 |
Other owners | 326 |