- 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: 446
10-year publication summary
|
28
|
25
|
30
|
36
|
42
|
30
|
37
|
34
|
18
|
28
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Conopco, Inc. | 4923 |
9 |
| Bridgestone Corporation | 7212 |
7 |
| PCS Instruments Limited | 37 |
7 |
| The Procter & Gamble Company | 22025 |
6 |
| China University of Mining and Technology | 1275 |
6 |
| Fisher Controls International LLC | 1503 |
6 |
| Unilever PLC | 3115 |
5 |
| Unilever N.V. | 3024 |
5 |
| Nitto Denko Corporation | 8361 |
5 |
| Volvo Car Corporation | 1814 |
5 |
| The Gillette Company LLC | 2572 |
5 |
| Halliburton Energy Services, Inc. | 21103 |
4 |
| Centre National de La Recherche Scientifique | 10716 |
4 |
| Chugoku Marine Paints, Ltd. | 174 |
4 |
| Southwest Research Institute | 736 |
4 |
| State Farm Mutual Automobile Insurance Company | 3195 |
4 |
| Toyo Tire Corporation | 1009 |
4 |
| Biocore, LLC | 8 |
4 |
| Toyota Motor Corporation | 33572 |
3 |
| The Boeing Company | 20052 |
3 |
| Other owners | 346 |