- All sections
- G - Physics
- G01C - Measuring distances, levels or bearingssurveyingnavigationgyroscopic instrumentsphotogrammetry or videogrammetry
- G01C 17/28 - Electromagnetic compasses
Patent holdings for IPC class G01C 17/28
Total number of patents in this class: 147
10-year publication summary
|
14
|
13
|
16
|
13
|
11
|
10
|
7
|
12
|
6
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 31148 |
9 |
| Samsung Electronics Co., Ltd. | 144143 |
7 |
| Suunto Oy | 184 |
6 |
| Apple Inc. | 54479 |
5 |
| Archaius Inc. | 23 |
5 |
| Casio Computer Co., Ltd. | 3420 |
3 |
| Alps Electric Co., Ltd. | 815 |
3 |
| Bose Corporation | 2963 |
3 |
| Isentek Inc. | 27 |
3 |
| Multidimension Technology Co., Ltd. | 229 |
3 |
| Qualcomm Incorporated | 84501 |
2 |
| Halliburton Energy Services, Inc. | 20749 |
2 |
| Seiko Epson Corporation | 19269 |
2 |
| Huawei Technologies Co., Ltd. | 110995 |
2 |
| Kyocera Corporation | 13689 |
2 |
| Rohm Co., Ltd. | 6411 |
2 |
| eBay Inc. | 3355 |
2 |
| ETA SA Manufacture Horlogere Suisse | 673 |
2 |
| Google LLC | 41828 |
2 |
| PGS Geophysical AS | 537 |
2 |
| Other owners | 80 |