- 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: 583
10-year publication summary
|
54
|
51
|
53
|
59
|
41
|
43
|
51
|
40
|
41
|
20
|
| 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. | 4009 |
16 |
| Saudi Arabian Oil Company | 12833 |
11 |
| Caterpillar Inc. | 9449 |
9 |
| International Business Machines Corporation | 60907 |
8 |
| Bridgestone Corporation | 7206 |
8 |
| Wirtgen GmbH | 501 |
8 |
| Siemens Energy, Inc. | 1694 |
7 |
| Shandong University | 1017 |
7 |
| GPCP IP Holdings LLC | 1643 |
7 |
| Aramco Services Company | 3904 |
6 |
| Halliburton Energy Services, Inc. | 20730 |
5 |
| Columbia Insurance Company | 1503 |
5 |
| Sumitomo Rubber Industries, Ltd. | 4471 |
5 |
| Metalogenia Research & Technologies S.L. | 101 |
5 |
| National Technology & Engineering Solutions of Sandia, LLC | 1888 |
5 |
| Agc, Inc. | 4719 |
5 |
| The Boeing Company | 19994 |
4 |
| The Goodyear Tire & Rubber Company | 2566 |
4 |
| Vermeer Manufacturing Company | 634 |
4 |
| Rtec-instruments, Inc. | 5 |
4 |
| Other owners | 450 |