- All sections
- G - Physics
- G01C - Measuring distances, levels or bearingssurveyingnavigationgyroscopic instrumentsphotogrammetry or videogrammetry
- G01C 21/28 - NavigationNavigational instruments not provided for in groups specially adapted for navigation in a road network with correlation of data from several navigational instruments
Patent holdings for IPC class G01C 21/28
Total number of patents in this class: 1293
10-year publication summary
|
105
|
162
|
174
|
159
|
112
|
112
|
83
|
67
|
77
|
30
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 25513 |
54 |
| Mitsubishi Electric Corporation | 47971 |
38 |
| Pioneer Corporation | 3782 |
37 |
| Toyota Motor Corporation | 35680 |
35 |
| Qualcomm Incorporated | 91997 |
31 |
| Nissan Motor Co., Ltd. | 12947 |
29 |
| Sony Corporation | 30208 |
28 |
| Robert Bosch GmbH | 44128 |
28 |
| Sony Group Corporation | 15597 |
26 |
| Aichi Steel Corporation | 393 |
21 |
| Hitachi Astemo, Ltd. | 6410 |
21 |
| Here Global B.V. | 2267 |
19 |
| Hitachi, Ltd. | 16071 |
18 |
| Honda Motor Co., Ltd. | 26008 |
15 |
| NEC Corporation | 36934 |
15 |
| Panasonic Intellectual Property Management Co., Ltd. | 33911 |
15 |
| Ford Global Technologies, LLC | 21478 |
14 |
| Bayerische Motoren Werke Aktiengesellschaft | 15252 |
14 |
| Clarion Co., Ltd. | 756 |
14 |
| TomTom Global Content B.V. | 140 |
14 |
| Other owners | 807 |