- 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: 1278
10-year publication summary
|
103
|
158
|
172
|
154
|
111
|
111
|
81
|
67
|
75
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 24983 |
54 |
| Mitsubishi Electric Corporation | 47352 |
38 |
| Pioneer Corporation | 4032 |
37 |
| Toyota Motor Corporation | 33951 |
36 |
| Qualcomm Incorporated | 88827 |
31 |
| Nissan Motor Co., Ltd. | 12696 |
30 |
| Sony Corporation | 30588 |
28 |
| Robert Bosch GmbH | 43294 |
28 |
| Sony Group Corporation | 14912 |
25 |
| Aichi Steel Corporation | 391 |
21 |
| Hitachi Astemo, Ltd. | 6381 |
20 |
| Here Global B.V. | 2239 |
19 |
| Hitachi, Ltd. | 15800 |
17 |
| Honda Motor Co., Ltd. | 25773 |
15 |
| NEC Corporation | 36448 |
15 |
| Panasonic Intellectual Property Management Co., Ltd. | 32983 |
15 |
| Clarion Co., Ltd. | 790 |
14 |
| TomTom Global Content B.V. | 132 |
14 |
| Ford Global Technologies, LLC | 21095 |
13 |
| Bayerische Motoren Werke Aktiengesellschaft | 14870 |
13 |
| Other owners | 795 |