- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 29/028 - Analysing fluids by measuring mechanical or acoustic impedance
Patent holdings for IPC class G01N 29/028
Total number of patents in this class: 80
10-year publication summary
|
6
|
9
|
5
|
6
|
4
|
7
|
6
|
6
|
6
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Oilfield Operations, LLC | 2521 |
5 |
| Baker Hughes Incorporated | 4940 |
4 |
| HemoSonics LLC | 55 |
4 |
| Labcyte Inc. | 94 |
4 |
| Cidra Corporate Services, Inc. | 199 |
3 |
| Perceptive Sensor Technologies, Inc. | 29 |
3 |
| Halliburton Energy Services, Inc. | 21320 |
2 |
| Hewlett-Packard Development Company, L.P. | 25216 |
2 |
| Aramco Services Company | 4188 |
2 |
| Qorvo US, Inc. | 2394 |
2 |
| Saudi Arabian Oil Company | 14207 |
2 |
| Apple Inc. | 58705 |
1 |
| General Electric Company | 13888 |
1 |
| Schlumberger Technology Corporation | 11798 |
1 |
| Schlumberger Canada Limited | 7606 |
1 |
| Schlumberger Technology B.v. | 5298 |
1 |
| Siemens AG | 24033 |
1 |
| Centre National de La Recherche Scientifique | 11016 |
1 |
| Seiko Instruments Inc. | 455 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5249 |
1 |
| Other owners | 38 |