- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 3/56 - Investigating resistance to wear or abrasion
Patent holdings for IPC class G01N 3/56
Total number of patents in this class: 592
10-year publication summary
|
52
|
49
|
49
|
58
|
41
|
39
|
48
|
36
|
40
|
31
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Yokohama Rubber Co., Ltd. | 4087 |
16 |
| Saudi Arabian Oil Company | 13622 |
11 |
| Caterpillar Inc. | 9730 |
9 |
| International Business Machines Corporation | 61734 |
8 |
| Bridgestone Corporation | 7216 |
8 |
| Wirtgen GmbH | 509 |
8 |
| Siemens Energy, Inc. | 1703 |
7 |
| Shandong University | 1066 |
7 |
| GPCP IP Holdings LLC | 1622 |
7 |
| Aramco Services Company | 4090 |
6 |
| Halliburton Energy Services, Inc. | 21021 |
5 |
| Columbia Insurance Company | 1525 |
5 |
| Sumitomo Rubber Industries, Ltd. | 4673 |
5 |
| Metalogenia Research & Technologies S.L. | 108 |
5 |
| National Technology & Engineering Solutions of Sandia, LLC | 1912 |
5 |
| Agc, Inc. | 5000 |
5 |
| The Boeing Company | 20166 |
4 |
| The Goodyear Tire & Rubber Company | 2443 |
4 |
| Vermeer Manufacturing Company | 648 |
4 |
| Rtec-instruments, Inc. | 5 |
4 |
| Other owners | 459 |