- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials
Patent holdings for IPC class G01N 15/08
Total number of patents in this class: 1985
10-year publication summary
|
110
|
159
|
135
|
173
|
173
|
174
|
136
|
136
|
156
|
53
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 12858 |
155 |
| Schlumberger Technology Corporation | 10627 |
61 |
| Halliburton Energy Services, Inc. | 20749 |
55 |
| Aramco Services Company | 3910 |
48 |
| Southwest Petroleum University | 459 |
33 |
| Schlumberger Canada Limited | 7235 |
27 |
| Chevron U.S.A. Inc. | 3929 |
23 |
| Services Petroliers Schlumberger | 5756 |
22 |
| NGK Insulators, Ltd. | 4920 |
21 |
| Schlumberger Technology B.v. | 5148 |
20 |
| EMD Millipore Corporation | 647 |
19 |
| Corning Incorporated | 10240 |
16 |
| Schlumberger Holdings Limited | 2841 |
15 |
| China University of Petroleum (East China) | 367 |
15 |
| Prad Research and Development Limited | 2694 |
15 |
| Sartorius Stedim Biotech GmbH | 824 |
15 |
| University of Wyoming | 360 |
15 |
| PetroChina Company Limited | 676 |
14 |
| Zhejiang University | 3093 |
14 |
| The Boeing Company | 20013 |
13 |
| Other owners | 1369 |