- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 33/26 - OilsViscous liquidsPaintsInks
Patent holdings for IPC class G01N 33/26
Total number of patents in this class: 218
10-year publication summary
|
9
|
9
|
14
|
9
|
5
|
7
|
5
|
5
|
8
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 11893 |
8 |
| Schlumberger Canada Limited | 7627 |
6 |
| Halliburton Energy Services, Inc. | 21296 |
6 |
| Saudi Arabian Oil Company | 14329 |
6 |
| Services Petroliers Schlumberger | 6038 |
6 |
| Schlumberger Technology B.v. | 5302 |
5 |
| GM Global Technology Operations LLC | 16205 |
4 |
| Chevron U.S.A. Inc. | 4162 |
4 |
| The Lubrizol Corporation | 1260 |
4 |
| Qualitrol Company, LLC | 54 |
4 |
| Quest Diagnostics Investments Incorporated | 390 |
4 |
| 3m Innovative Properties Company | 17459 |
3 |
| Afton Chemical Corporation | 498 |
3 |
| Cidra Corporate Services, Inc. | 199 |
3 |
| SPECTRO Scientific, Inc. | 42 |
3 |
| Transportation IP Holdings, LLC | 1003 |
3 |
| Schlumberger Holdings Limited | 2683 |
2 |
| Baker Hughes Incorporated | 4903 |
2 |
| ExxonMobil Research And Engineering Company | 2398 |
2 |
| Aktiebolaget SKF | 3148 |
2 |
| Other owners | 138 |