- All sections
- G - Physics
- G01C - Measuring distances, levels or bearings; surveying; navigation; gyroscopic instruments; photogrammetry or videogrammetry
- G01C 17/28 - Electromagnetic compasses
Patent holdings for IPC class G01C 17/28
Total number of patents in this class: 145
10-year publication summary
|
12
|
14
|
13
|
16
|
13
|
11
|
9
|
6
|
12
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sony Corporation | 32931 |
9 |
| Samsung Electronics Co., Ltd. | 131630 |
6 |
| Suunto Oy | 188 |
6 |
| Apple Inc. | 50209 |
5 |
| Alps Electric Co., Ltd. | 851 |
5 |
| Archaius Inc. | 20 |
4 |
| Casio Computer Co., Ltd. | 3343 |
3 |
| Bose Corporation | 2880 |
3 |
| Isentek Inc. | 24 |
3 |
| Multidimension Technology Co., Ltd. | 212 |
3 |
| Qualcomm Incorporated | 76576 |
2 |
| Halliburton Energy Services, Inc. | 20165 |
2 |
| Nokia Corporation | 6965 |
2 |
| Seiko Epson Corporation | 18724 |
2 |
| Huawei Technologies Co., Ltd. | 100781 |
2 |
| Kyocera Corporation | 12735 |
2 |
| Rohm Co., Ltd. | 5843 |
2 |
| eBay Inc. | 3298 |
2 |
| Google LLC | 38759 |
2 |
| PGS Geophysical AS | 547 |
2 |
| Other owners | 78 |