- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 9/36 - Analysing materials by measuring the density or specific gravity, e.g. determining quantity of moisture
Patent holdings for IPC class G01N 9/36
Total number of patents in this class: 320
10-year publication summary
|
18
|
21
|
34
|
36
|
22
|
27
|
20
|
21
|
24
|
19
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 10930 |
14 |
| Halliburton Energy Services, Inc. | 20991 |
12 |
| Micro Motion, Inc. | 1022 |
12 |
| Saudi Arabian Oil Company | 13442 |
8 |
| The Boeing Company | 20139 |
7 |
| Schlumberger Canada Limited | 7383 |
5 |
| Schlumberger Technology B.v. | 5191 |
5 |
| Air Products and Chemicals, Inc. | 1446 |
5 |
| Services Petroliers Schlumberger | 5838 |
5 |
| Massachusetts Institute of Technology | 10121 |
4 |
| Aramco Services Company | 4042 |
4 |
| Precision Planting LLC | 1131 |
4 |
| ExxonMobil Research And Engineering Company | 2562 |
3 |
| Endress + Hauser Flowtec AG | 610 |
3 |
| Instituto Mexicano Del Petroleo | 223 |
3 |
| M-flow Technologies Ltd | 27 |
3 |
| Truedyne Sensors AG | 38 |
3 |
| Universidad de Santiago de Chile | 157 |
3 |
| Zhejiang University | 3216 |
3 |
| Schneider Electric Systems USA, Inc. | 441 |
3 |
| Other owners | 211 |