- 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
|
13
|
16
|
13
|
11
|
10
|
7
|
12
|
6
|
6
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 30312 |
9 |
| Samsung Electronics Co., Ltd. | 155524 |
7 |
| Suunto Oy | 163 |
6 |
| Archaius Inc. | 29 |
6 |
| Apple Inc. | 58317 |
5 |
| Lockheed Martin Corporation | 3268 |
3 |
| Casio Computer Co., Ltd. | 3488 |
3 |
| Bose Corporation | 3091 |
3 |
| Isentek Inc. | 28 |
3 |
| Multidimension Technology Co., Ltd. | 238 |
3 |
| Qualcomm Incorporated | 91008 |
2 |
| Halliburton Energy Services, Inc. | 21251 |
2 |
| Seiko Epson Corporation | 20099 |
2 |
| Huawei Technologies Co., Ltd. | 121322 |
2 |
| Rohm Co., Ltd. | 6777 |
2 |
| eBay Inc. | 3443 |
2 |
| Alps Electric Co., Ltd. | 769 |
2 |
| ETA SA Manufacture Horlogere Suisse | 695 |
2 |
| Google LLC | 44142 |
2 |
| PGS Geophysical AS | 527 |
2 |
| Other owners | 79 |