- 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
|
25
|
30
|
36
|
42
|
30
|
36
|
35
|
18
|
29
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Conopco, Inc. | 4960 |
9 |
| Bridgestone Corporation | 7235 |
7 |
| PCS Instruments Limited | 39 |
7 |
| The Procter & Gamble Company | 21964 |
6 |
| China University of Mining and Technology | 1284 |
6 |
| Fisher Controls International LLC | 1495 |
6 |
| Unilever PLC | 3089 |
5 |
| Unilever N.V. | 2998 |
5 |
| Nitto Denko Corporation | 8410 |
5 |
| Volvo Car Corporation | 1836 |
5 |
| The Gillette Company LLC | 2568 |
5 |
| Halliburton Energy Services, Inc. | 21098 |
4 |
| Centre National de La Recherche Scientifique | 10805 |
4 |
| Chugoku Marine Paints, Ltd. | 174 |
4 |
| Southwest Research Institute | 736 |
4 |
| State Farm Mutual Automobile Insurance Company | 3262 |
4 |
| Toyo Tire Corporation | 1020 |
4 |
| Biocore, LLC | 8 |
4 |
| Toyota Motor Corporation | 33951 |
3 |
| The Boeing Company | 20106 |
3 |
| Other owners | 346 |