- 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: 79
10-year publication summary
|
4
|
6
|
9
|
5
|
5
|
4
|
7
|
6
|
6
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Incorporated | 5279 |
4 |
| HemoSonics LLC | 56 |
4 |
| Labcyte Inc. | 87 |
4 |
| Baker Hughes Oilfield Operations, LLC | 2283 |
4 |
| Perceptive Sensor Technologies, Inc. | 35 |
4 |
| Cidra Corporate Services, Inc. | 202 |
3 |
| Hewlett-Packard Development Company, L.P. | 25933 |
2 |
| Aramco Services Company | 3927 |
2 |
| Matrix Sensors, Inc. | 21 |
2 |
| Qorvo US, Inc. | 2203 |
2 |
| Saudi Arabian Oil Company | 12911 |
2 |
| Corvera LLC | 23 |
2 |
| Apple Inc. | 54577 |
1 |
| General Electric Company | 13838 |
1 |
| Schlumberger Technology Corporation | 10652 |
1 |
| Schlumberger Canada Limited | 7266 |
1 |
| Schlumberger Technology B.v. | 5160 |
1 |
| Halliburton Energy Services, Inc. | 20788 |
1 |
| Siemens AG | 24552 |
1 |
| Centre National de La Recherche Scientifique | 10395 |
1 |
| Other owners | 36 |