- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 33/26 - Oils; Viscous liquids; Paints; Inks
Patent holdings for IPC class G01N 33/26
Total number of patents in this class: 233
10-year publication summary
|
19
|
21
|
9
|
9
|
14
|
9
|
5
|
7
|
5
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 9690 |
8 |
| Schlumberger Canada Limited | 6913 |
7 |
| Services Petroliers Schlumberger | 5426 |
6 |
| Schlumberger Technology B.v. | 4951 |
5 |
| Halliburton Energy Services, Inc. | 20165 |
5 |
| Saudi Arabian Oil Company | 11322 |
5 |
| GM Global Technology Operations LLC | 13620 |
4 |
| Chevron U.S.A. Inc. | 3774 |
4 |
| The Lubrizol Corporation | 1335 |
4 |
| Qualitrol Company, LLC | 57 |
4 |
| Quest Diagnostics Investments Incorporated | 432 |
4 |
| Baker Hughes Incorporated | 5689 |
3 |
| Afton Chemical Corporation | 468 |
3 |
| Cidra Corporate Services, Inc. | 208 |
3 |
| SPECTRO Scientific, Inc. | 42 |
3 |
| Transportation IP Holdings, LLC | 843 |
3 |
| Schlumberger Holdings Limited | 2947 |
2 |
| 3m Innovative Properties Company | 18406 |
2 |
| ExxonMobil Research And Engineering Company | 2830 |
2 |
| Aktiebolaget SKF | 2700 |
2 |
| Other owners | 154 |