- 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: 432
10-year publication summary
|
28
|
25
|
30
|
36
|
42
|
30
|
35
|
35
|
18
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Conopco, Inc. | 4993 |
8 |
| Bridgestone Corporation | 7218 |
7 |
| PCS Instruments Limited | 35 |
7 |
| The Procter & Gamble Company | 21996 |
6 |
| China University of Mining and Technology | 1268 |
6 |
| Fisher Controls International LLC | 1506 |
6 |
| Unilever PLC | 3162 |
5 |
| Unilever N.V. | 3072 |
5 |
| Nitto Denko Corporation | 8337 |
5 |
| Volvo Car Corporation | 1781 |
5 |
| The Gillette Company LLC | 2563 |
5 |
| Halliburton Energy Services, Inc. | 21002 |
4 |
| Centre National de La Recherche Scientifique | 10611 |
4 |
| Chugoku Marine Paints, Ltd. | 174 |
4 |
| Southwest Research Institute | 739 |
4 |
| State Farm Mutual Automobile Insurance Company | 3142 |
4 |
| Toyo Tire Corporation | 1013 |
4 |
| Toyota Motor Corporation | 33138 |
3 |
| The Boeing Company | 20157 |
3 |
| American International Group, Inc. | 398 |
3 |
| Other owners | 334 |