- All sections
- G - Physics
- G01B - Measuring length, thickness or similar linear dimensions; measuring angles; measuring areas; measuring irregularities of surfaces or contours
- G01B 5/20 - Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
Patent holdings for IPC class G01B 5/20
Total number of patents in this class: 482
10-year publication summary
|
40
|
38
|
46
|
33
|
50
|
42
|
29
|
21
|
22
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitutoyo Corporation | 1218 |
66 |
| Tokyo Seimitsu Co., Ltd. | 257 |
31 |
| Essilor International (compagnie Generale D'optique) | 2918 |
13 |
| Renishaw plc | 739 |
12 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
8 |
| Nidek Co., Ltd. | 357 |
8 |
| Hoya Corporation | 2822 |
7 |
| Carl Mahr Holding GmbH | 118 |
7 |
| CITIC Dicastal CO., LTD | 531 |
7 |
| General Electric Company | 18133 |
5 |
| Gleason Metrology Systems Corporation | 19 |
5 |
| The Boeing Company | 19843 |
4 |
| Rolls-Royce PLC | 2944 |
4 |
| Dalian University of Technology | 1387 |
4 |
| JI Zhun Precision Industry (Hui Zhou) Co., Ltd. | 17 |
4 |
| Marposs, S.p.A. | 141 |
4 |
| Safran Aircraft Engines | 5739 |
4 |
| Taylor Hobson Limited | 61 |
4 |
| Tenova S.p.A. | 150 |
4 |
| Siemens AG | 24990 |
3 |
| Other owners | 278 |