- 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: 2067
10-year publication summary
|
109
|
151
|
128
|
163
|
160
|
167
|
136
|
131
|
155
|
127
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13656 |
163 |
| Schlumberger Technology Corporation | 11054 |
63 |
| Halliburton Energy Services, Inc. | 21078 |
55 |
| Aramco Services Company | 4095 |
51 |
| Southwest Petroleum University | 486 |
35 |
| Schlumberger Canada Limited | 7432 |
27 |
| Chevron U.S.A. Inc. | 4018 |
24 |
| Services Petroliers Schlumberger | 5884 |
23 |
| Schlumberger Technology B.v. | 5223 |
21 |
| NGK Insulators, Ltd. | 5144 |
21 |
| EMD Millipore Corporation | 641 |
19 |
| China University of Petroleum (East China) | 389 |
16 |
| PetroChina Company Limited | 725 |
16 |
| Zhejiang University | 3264 |
16 |
| Schlumberger Holdings Limited | 2790 |
15 |
| Corning Incorporated | 10387 |
15 |
| Prad Research and Development Limited | 2687 |
15 |
| Sartorius Stedim Biotech GmbH | 855 |
15 |
| University of Wyoming | 373 |
15 |
| Korea Gas Corporation | 120 |
14 |
| Other owners | 1428 |