- 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: 448
10-year publication summary
|
26
|
34
|
37
|
42
|
31
|
37
|
37
|
18
|
29
|
5
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Conopco, Inc. | 4999 |
9 |
| Bridgestone Corporation | 7233 |
7 |
| PCS Instruments Limited | 41 |
7 |
| The Procter & Gamble Company | 21920 |
6 |
| China University of Mining and Technology | 1292 |
6 |
| Fisher Controls International LLC | 1483 |
6 |
| Unilever PLC | 3042 |
5 |
| Unilever N.V. | 2951 |
5 |
| Nitto Denko Corporation | 8470 |
5 |
| Volvo Car Corporation | 1908 |
5 |
| The Gillette Company LLC | 2555 |
5 |
| Halliburton Energy Services, Inc. | 21242 |
4 |
| Centre National de La Recherche Scientifique | 10895 |
4 |
| Chugoku Marine Paints, Ltd. | 173 |
4 |
| Southwest Research Institute | 735 |
4 |
| State Farm Mutual Automobile Insurance Company | 3356 |
4 |
| Toyo Tire Corporation | 1032 |
4 |
| Toyota Motor Corporation | 34877 |
3 |
| The Boeing Company | 20094 |
3 |
| American International Group, Inc. | 386 |
3 |
| Other owners | 349 |