- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 19/02 - Measuring coefficient of friction between materials
Patent holdings for IPC class G01N 19/02
Total number of patents in this class: 460
10-year publication summary
|
26
|
34
|
37
|
42
|
31
|
37
|
37
|
18
|
29
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Conopco, Inc. | 5081 |
9 |
| Bridgestone Corporation | 7251 |
7 |
| PCS Instruments Limited | 41 |
7 |
| The Procter & Gamble Company | 21861 |
6 |
| China University of Mining and Technology | 1308 |
6 |
| Fisher Controls International LLC | 1460 |
6 |
| Unilever PLC | 3002 |
5 |
| Unilever N.V. | 2916 |
5 |
| Nitto Denko Corporation | 8526 |
5 |
| Volvo Car Corporation | 1946 |
5 |
| The Gillette Company LLC | 2555 |
5 |
| Halliburton Energy Services, Inc. | 21320 |
4 |
| Centre National de La Recherche Scientifique | 11016 |
4 |
| Nissan Motor Co., Ltd. | 12947 |
4 |
| Chugoku Marine Paints, Ltd. | 177 |
4 |
| Southwest Research Institute | 742 |
4 |
| State Farm Mutual Automobile Insurance Company | 3414 |
4 |
| Toyo Tire Corporation | 1051 |
4 |
| Toyota Motor Corporation | 35680 |
3 |
| The Boeing Company | 20160 |
3 |
| Other owners | 360 |