- All sections
- G - Physics
- G01C - Measuring distances, levels or bearingssurveyingnavigationgyroscopic instrumentsphotogrammetry or videogrammetry
- G01C 9/20 - Measuring inclination, e.g. by clinometers, by levels by using liquids the indication being based on the inclination of the surface of a liquid relative to its container
Patent holdings for IPC class G01C 9/20
Total number of patents in this class: 30
10-year publication summary
|
8
|
1
|
1
|
3
|
0
|
1
|
1
|
2
|
3
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Topcon Corporation | 1211 |
4 |
| Kabushiki Kaisha Topcon | 552 |
2 |
| National Research Council of Canada | 1551 |
2 |
| ShockWatch, Inc. | 108 |
2 |
| Hahn-Schickard-Gesellschaft für angewandte Forschung e.V. | 147 |
2 |
| Vision Guard LLC | 4 |
2 |
| Qualcomm Incorporated | 93172 |
1 |
| Lexmark International, Inc. | 1534 |
1 |
| Thales Canada Inc. | 104 |
1 |
| The Aerospace Corporation | 420 |
1 |
| Breville Pty Limited | 670 |
1 |
| Dr. Johannes Heidenhain GmbH | 407 |
1 |
| GLOBALFOUNDRIES U.S. Inc. | 6389 |
1 |
| Harbin Institute of Technology | 501 |
1 |
| Hexagon Technology Center GmbH | 197 |
1 |
| National Applied Research Laboratories | 156 |
1 |
| Sartorius Weighing Technology GmbH | 17 |
1 |
| Scania CV AB | 2412 |
1 |
| Hitachi Rail GTS Canada Inc. | 115 |
1 |
| OK Safety Partners Inc. | 4 |
1 |
| Other owners | 2 |