- All sections
- G - Physics
- G01C - Measuring distances, levels or bearings; surveying; navigation; gyroscopic instruments; photogrammetry or videogrammetry
- G01C 21/28 - Navigation; Navigational 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: 1149
10-year publication summary
|
60
|
66
|
105
|
162
|
172
|
159
|
111
|
105
|
79
|
23
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 23338 |
53 |
| Mitsubishi Electric Corporation | 43934 |
38 |
| Pioneer Corporation | 4843 |
35 |
| Nissan Motor Co., Ltd. | 12249 |
29 |
| Sony Corporation | 32931 |
28 |
| Qualcomm Incorporated | 76576 |
26 |
| Toyota Motor Corporation | 28582 |
26 |
| Robert Bosch GmbH | 40953 |
24 |
| Aichi Steel Corporation | 333 |
20 |
| Sony Group Corporation | 10730 |
20 |
| Here Global B.V. | 2210 |
19 |
| Hitachi Astemo, Ltd. | 5618 |
16 |
| Hitachi, Ltd. | 16452 |
15 |
| NEC Corporation | 32703 |
14 |
| Clarion Co., Ltd. | 896 |
14 |
| TomTom Global Content B.V. | 121 |
14 |
| Honda Motor Co., Ltd. | 24537 |
13 |
| International Business Machines Corporation | 60644 |
12 |
| Ford Global Technologies, LLC | 19702 |
12 |
| Continental Automotive GmbH | 5573 |
12 |
| Other owners | 709 |