- 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
|
5
|
12
|
6
|
2
|
7
|
6
|
8
|
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 | 5789 |
2 |
| Robert Bosch GmbH | 42450 |
2 |
| Dow Global Technologies LLC | 10354 |
2 |
| Chevron U.S.A. Inc. | 3929 |
2 |
| Total SA | 495 |
2 |
| Schlumberger Technology Corporation | 10627 |
1 |
| Schlumberger Canada Limited | 7235 |
1 |
| LG Chem, Ltd. | 17561 |
1 |
| E. I. du Pont de Nemours and Company | 4118 |
1 |
| FUJIFILM Corporation | 29228 |
1 |
| Cheil Industries Inc. | 902 |
1 |
| Massachusetts Institute of Technology | 10013 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4898 |
1 |
| Aramco Services Company | 3910 |
1 |
| ASMEC Advanced Surface Mechanics GmbH | 1 |
1 |
| Construction Technology Laboratories, Inc. | 5 |
1 |
| Other owners | 18 |