- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 13/00 - Investigating surface or boundary effects, e.g. wetting powerInvestigating diffusion effectsAnalysing materials by determining surface, boundary, or diffusion effects
Patent holdings for IPC class G01N 13/00
Total number of patents in this class: 549
10-year publication summary
|
47
|
42
|
52
|
37
|
38
|
47
|
33
|
31
|
29
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14207 |
26 |
| Schlumberger Technology Corporation | 11798 |
12 |
| Halliburton Energy Services, Inc. | 21320 |
11 |
| JFE Steel Corporation | 7508 |
8 |
| Hoffmann-La Roche Inc. | 3783 |
7 |
| Nippon Telegraph and Telephone Corporation | 15922 |
7 |
| Cambridge Enterprise Limited | 1243 |
7 |
| The Regents of the University of California | 20720 |
6 |
| Aramco Services Company | 4188 |
6 |
| Bracco Imaging S.p.A. | 309 |
6 |
| F. Hoffmann-La Roche AG | 7836 |
5 |
| Schlumberger Canada Limited | 7606 |
5 |
| Schlumberger Technology B.v. | 5298 |
5 |
| Services Petroliers Schlumberger | 6024 |
5 |
| Southwest Petroleum University | 521 |
5 |
| Ventana Medical Systems, Inc. | 1068 |
5 |
| Wuhan University of Technology | 214 |
5 |
| Schlumberger Holdings Limited | 2702 |
4 |
| LG Chem, Ltd. | 17921 |
4 |
| Shimadzu Corporation | 6337 |
4 |
| Other owners | 406 |