- All sections
- G - Physics
- G01S - Radio direction-findingradio navigationdetermining distance or velocity by use of radio waveslocating or presence-detecting by use of the reflection or reradiation of radio wavesanalogous arrangements using other waves
- G01S 5/22 - Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
Patent holdings for IPC class G01S 5/22
Total number of patents in this class: 311
10-year publication summary
|
16
|
27
|
30
|
30
|
23
|
25
|
31
|
28
|
21
|
15
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 36252 |
11 |
| Huawei Technologies Co., Ltd. | 115556 |
7 |
| Battelle Memorial Institute | 2503 |
7 |
| Gracenote, Inc. | 487 |
7 |
| Goertek Inc. | 2689 |
6 |
| Symbol Technologies, LLC | 1177 |
6 |
| Qualcomm Incorporated | 87475 |
5 |
| Amazon Technologies, Inc. | 27203 |
5 |
| Samsung Electronics Co., Ltd. | 148924 |
4 |
| ZTE Corporation | 43019 |
4 |
| Benchmark Electronics, Inc. | 49 |
4 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 916 |
4 |
| Hitachi, Ltd. | 15679 |
3 |
| Tsinghua University | 6011 |
3 |
| Nokia Technologies Oy | 19120 |
3 |
| BAE Systems Information and Electronic Systems Integration Inc. | 1853 |
3 |
| Digimarc Corporation | 730 |
3 |
| Intelligent Sciences, Ltd. | 10 |
3 |
| Korea Research Institute of Standards and Science | 683 |
3 |
| Wayne State University | 693 |
3 |
| Other owners | 217 |