- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 9/04 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by measuring weight of a known volume of fluids
Patent holdings for IPC class G01N 9/04
Total number of patents in this class: 53
10-year publication summary
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3
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4
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2
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4
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2
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5
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3
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4
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5
|
1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20911 |
4 |
| Validere Technologies Inc. | 18 |
4 |
| Red Meters LLC | 6 |
3 |
| Schlumberger Canada Limited | 7332 |
2 |
| Saudi Arabian Oil Company | 13224 |
2 |
| Shanghai Institute of Ceramics, Chinese Academy of Sciences | 159 |
2 |
| General Electric Company | 13810 |
1 |
| Schlumberger Technology Corporation | 10780 |
1 |
| Schlumberger Technology B.v. | 5176 |
1 |
| Schlumberger Holdings Limited | 2817 |
1 |
| Toyota Motor Corporation | 32450 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8752 |
1 |
| Robert Bosch GmbH | 42705 |
1 |
| Shimadzu Corporation | 6179 |
1 |
| Georgia Tech Research Corporation | 2744 |
1 |
| Japan Science and Technology Agency | 1321 |
1 |
| Boe Technology Group Co., Ltd. | 41291 |
1 |
| Aramco Services Company | 3987 |
1 |
| Duna-corradini S.p.A. | 15 |
1 |
| Les Equipements D'erabliere CDL Inc. | 23 |
1 |
| Other owners | 22 |