- 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: 307
10-year publication summary
|
16
|
29
|
32
|
30
|
29
|
27
|
32
|
28
|
21
|
9
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Corporation | 35471 |
11 |
| Huawei Technologies Co., Ltd. | 111449 |
7 |
| Battelle Memorial Institute | 2479 |
7 |
| Gracenote, Inc. | 467 |
6 |
| Symbol Technologies, LLC | 1219 |
6 |
| Amazon Technologies, Inc. | 26528 |
5 |
| Goertek Inc. | 2652 |
5 |
| Samsung Electronics Co., Ltd. | 144675 |
4 |
| Qualcomm Incorporated | 84760 |
4 |
| ZTE Corporation | 42101 |
4 |
| Benchmark Electronics, Inc. | 49 |
4 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 883 |
4 |
| Hitachi, Ltd. | 15462 |
3 |
| Tsinghua University | 5855 |
3 |
| Nokia Technologies Oy | 17625 |
3 |
| BAE Systems Information and Electronic Systems Integration Inc. | 1817 |
3 |
| Digimarc Corporation | 739 |
3 |
| Intelligent Sciences, Ltd. | 10 |
3 |
| Korea Research Institute of Standards and Science | 671 |
3 |
| Wayne State University | 685 |
3 |
| Other owners | 216 |