- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 3/46 - Investigating hardness or rebound hardness by performing impressions under a steady load by indentors, e.g. sphere, pyramid the indentors performing a scratching movement
Patent holdings for IPC class G01N 3/46
Total number of patents in this class: 67
10-year publication summary
|
5
|
4
|
11
|
6
|
2
|
6
|
6
|
6
|
6
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Massachusetts Materials Technologies LLC | 14 |
12 |
| Helmut Fischer GmbH Institut fur Elektronik und Messtechnik | 165 |
9 |
| Anton Paar Tritec SA | 16 |
4 |
| Innowep GmbH | 3 |
3 |
| Colgate-Palmolive Company | 5786 |
2 |
| Robert Bosch GmbH | 42705 |
2 |
| Dow Global Technologies LLC | 10360 |
2 |
| Chevron U.S.A. Inc. | 3967 |
2 |
| Total SA | 494 |
2 |
| Schlumberger Technology Corporation | 10780 |
1 |
| Schlumberger Canada Limited | 7332 |
1 |
| LG Chem, Ltd. | 17635 |
1 |
| E. I. du Pont de Nemours and Company | 4050 |
1 |
| FUJIFILM Corporation | 29437 |
1 |
| Cheil Industries Inc. | 852 |
1 |
| Massachusetts Institute of Technology | 10062 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4969 |
1 |
| Aramco Services Company | 3987 |
1 |
| ASMEC Advanced Surface Mechanics GmbH | 1 |
1 |
| Construction Technology Laboratories, Inc. | 4 |
1 |
| Other owners | 18 |