- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 13/02 - Investigating surface tension of liquids
Patent holdings for IPC class G01N 13/02
Total number of patents in this class: 319
10-year publication summary
|
23
|
28
|
22
|
28
|
26
|
22
|
28
|
11
|
20
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13953 |
31 |
| Schlumberger Technology Corporation | 11485 |
10 |
| Aramco Services Company | 4162 |
9 |
| Ecolab USA Inc. | 5732 |
7 |
| Halliburton Energy Services, Inc. | 21217 |
6 |
| JFE Steel Corporation | 7362 |
6 |
| Apoha Limited | 22 |
6 |
| University of Florida Research Foundation, Inc. | 4147 |
5 |
| Cornell University | 3387 |
4 |
| Tecan Trading AG | 354 |
4 |
| The Regents of the University of California | 20556 |
3 |
| The Boeing Company | 20094 |
3 |
| Centre National de La Recherche Scientifique | 10881 |
3 |
| ExxonMobil Chemical Patents Inc. | 3827 |
3 |
| Rhodia Operations | 1523 |
3 |
| Wuhan University of Technology | 210 |
3 |
| Brighton Technologies LLC | 15 |
3 |
| Schlumberger Canada Limited | 7558 |
2 |
| Schlumberger Technology B.v. | 5267 |
2 |
| Siemens AG | 24199 |
2 |
| Other owners | 204 |