- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 11/04 - Investigating flow properties of materials, e.g. viscosity or plasticityAnalysing materials by determining flow properties by measuring flow of the material through a restricted passage, e.g. tube, aperture
Patent holdings for IPC class G01N 11/04
Total number of patents in this class: 351
10-year publication summary
|
31
|
26
|
28
|
18
|
24
|
29
|
36
|
37
|
21
|
10
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 12997 |
21 |
| Halliburton Energy Services, Inc. | 20862 |
9 |
| Konica Minolta Opto, Inc. | 1089 |
7 |
| Aramco Services Company | 3936 |
7 |
| Endress + Hauser Flowtec AG | 608 |
7 |
| JFE Steel Corporation | 6816 |
6 |
| Schlumberger Technology Corporation | 10673 |
5 |
| Delta SubSea LLC | 27 |
5 |
| Weatherford Technology Holdings, LLC | 2017 |
4 |
| Dynisco Instruments LLC | 24 |
4 |
| Shenzhen Mindray Bio-Medical Electronics Co., Ltd. | 1919 |
4 |
| Texas Tech University System | 569 |
4 |
| Centre National de La Recherche Scientifique | 10414 |
3 |
| Hewlett-Packard Development Company, L.P. | 25903 |
3 |
| The Regents of the University of Michigan | 4685 |
3 |
| Chevron Phillips Chemical Company LP | 1839 |
3 |
| Ecole Polytechnique Federale de Lausanne (epfl) | 1537 |
3 |
| Saint-Gobain Isover | 633 |
3 |
| SPECTRO Scientific, Inc. | 42 |
3 |
| The Texas a & M University System | 1690 |
3 |
| Other owners | 244 |