- 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: 543
10-year publication summary
|
45
|
54
|
51
|
53
|
59
|
41
|
43
|
52
|
35
|
16
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Yokohama Rubber Co., Ltd. | 3929 |
16 |
| Saudi Arabian Oil Company | 11322 |
12 |
| Caterpillar Inc. | 8877 |
9 |
| Bridgestone Corporation | 7067 |
9 |
| International Business Machines Corporation | 60644 |
8 |
| Wirtgen GmbH | 507 |
8 |
| Siemens Energy, Inc. | 1770 |
7 |
| Shandong University | 886 |
7 |
| GPCP IP Holdings LLC | 1733 |
7 |
| Aramco Services Company | 3504 |
6 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| Sumitomo Rubber Industries, Ltd. | 4421 |
5 |
| Metalogenia Research & Technologies S.L. | 90 |
5 |
| Agc, Inc. | 4029 |
5 |
| The Boeing Company | 19843 |
4 |
| Columbia Insurance Company | 1569 |
4 |
| The Goodyear Tire & Rubber Company | 2569 |
4 |
| Vermeer Manufacturing Company | 615 |
4 |
| National Technology & Engineering Solutions of Sandia, LLC | 1851 |
4 |
| Rtec-instruments, Inc. | 5 |
4 |
| Other owners | 410 |