- 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: 284
10-year publication summary
|
24
|
19
|
25
|
35
|
46
|
24
|
28
|
20
|
21
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 9690 |
12 |
| Halliburton Energy Services, Inc. | 20165 |
12 |
| Micro Motion, Inc. | 1011 |
11 |
| The Boeing Company | 19843 |
7 |
| Schlumberger Canada Limited | 6913 |
6 |
| Saudi Arabian Oil Company | 11322 |
6 |
| Schlumberger Technology B.v. | 4951 |
5 |
| Air Products and Chemicals, Inc. | 1448 |
5 |
| Services Petroliers Schlumberger | 5426 |
5 |
| ExxonMobil Research And Engineering Company | 2830 |
3 |
| Caterpillar Inc. | 8877 |
3 |
| Massachusetts Institute of Technology | 9795 |
3 |
| Endress + Hauser Flowtec AG | 585 |
3 |
| Instituto Mexicano Del Petroleo | 213 |
3 |
| M-flow Technologies Ltd | 27 |
3 |
| Truedyne Sensors AG | 30 |
3 |
| Universidad de Santiago de Chile | 148 |
3 |
| Equinor Energy AS | 475 |
3 |
| CNOOC Petroleum North America ULC | 48 |
3 |
| Schlumberger Holdings Limited | 2947 |
2 |
| Other owners | 183 |