- 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: 406
10-year publication summary
33
|
29
|
26
|
34
|
37
|
42
|
31
|
33
|
34
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Conopco, Inc. | 4644 |
8 |
Bridgestone Corporation | 7067 |
7 |
The Procter & Gamble Company | 22178 |
6 |
China University of Mining and Technology | 1189 |
6 |
Unilever PLC | 3540 |
5 |
Unilever N.V. | 3440 |
5 |
Nitto Denko Corporation | 7879 |
5 |
Fisher Controls International LLC | 1520 |
5 |
Volvo Car Corporation | 1403 |
5 |
The Gillette Company LLC | 2540 |
5 |
Halliburton Energy Services, Inc. | 20165 |
4 |
Centre National de La Recherche Scientifique | 9632 |
4 |
Continental Automotive GmbH | 5573 |
4 |
Chugoku Marine Paints, Ltd. | 154 |
4 |
PCS Instruments Limited | 28 |
4 |
Pirelli Tyre S.p.A. | 1832 |
4 |
Toyo Tire Corporation | 943 |
4 |
The Boeing Company | 19843 |
3 |
American International Group, Inc. | 427 |
3 |
Koninklijke Philips N.V. | 22975 |
3 |
Other owners | 312 |