- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/85 - Investigating moving fluids or granular solids
Patent holdings for IPC class G01N 21/85
Total number of patents in this class: 2055
10-year publication summary
|
150
|
176
|
191
|
143
|
126
|
146
|
122
|
136
|
121
|
23
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Satake Corporation | 290 |
67 |
| Halliburton Energy Services, Inc. | 21125 |
58 |
| CKD Corporation | 458 |
28 |
| Omni Medsci, Inc. | 37 |
23 |
| TOMRA Sorting GmbH | 79 |
23 |
| Ecolab USA Inc. | 5680 |
20 |
| Schlumberger Technology Corporation | 11326 |
18 |
| Saudi Arabian Oil Company | 13886 |
17 |
| Siemens AG | 24337 |
15 |
| Tokyo Electron Limited | 13428 |
15 |
| Robert Bosch GmbH | 43365 |
14 |
| Endress + Hauser Conducta GmbH + Co. KG | 356 |
14 |
| LaMotte Chemical Products Company | 33 |
14 |
| Hach Lange GmbH | 154 |
13 |
| Baker Hughes Oilfield Operations, LLC | 2421 |
12 |
| Deere & Company | 7851 |
10 |
| Yokogawa Electric Corporation | 1842 |
10 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6114 |
10 |
| Monsanto Technology LLC | 8224 |
9 |
| R-V Industries, Inc. | 44 |
9 |
| Other owners | 1656 |