- 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: 1977
10-year publication summary
|
167
|
159
|
185
|
198
|
154
|
137
|
154
|
126
|
136
|
57
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Satake Corporation | 292 |
63 |
| Halliburton Energy Services, Inc. | 20697 |
59 |
| CKD Corporation | 451 |
26 |
| Omni Medsci, Inc. | 36 |
22 |
| Ecolab USA Inc. | 5439 |
20 |
| TOMRA Sorting GmbH | 59 |
19 |
| Schlumberger Technology Corporation | 10597 |
17 |
| Siemens AG | 24563 |
15 |
| Tokyo Electron Limited | 12477 |
15 |
| Robert Bosch GmbH | 42392 |
14 |
| LaMotte Chemical Products Company | 32 |
14 |
| Endress + Hauser Conducta GmbH + Co. KG | 338 |
13 |
| Saudi Arabian Oil Company | 12808 |
13 |
| Hach Lange GmbH | 147 |
10 |
| Baker Hughes Oilfield Operations, LLC | 2252 |
10 |
| Honeywell International Inc. | 13583 |
9 |
| Deere & Company | 7493 |
9 |
| R-V Industries, Inc. | 42 |
9 |
| Yokogawa Electric Corporation | 1714 |
9 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6121 |
9 |
| Other owners | 1602 |