- 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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6
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3
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4
|
2
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6
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4
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4
|
6
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1
|
2
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21320 |
4 |
| Validere Technologies Inc. | 18 |
4 |
| Red Meters LLC | 6 |
3 |
| Schlumberger Canada Limited | 7601 |
2 |
| Saudi Arabian Oil Company | 14248 |
2 |
| Shanghai Institute of Ceramics, Chinese Academy of Sciences | 162 |
2 |
| General Electric Company | 13910 |
1 |
| Schlumberger Technology Corporation | 11820 |
1 |
| Schlumberger Technology B.v. | 5295 |
1 |
| Schlumberger Holdings Limited | 2694 |
1 |
| Toyota Motor Corporation | 35813 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 9139 |
1 |
| Robert Bosch GmbH | 44176 |
1 |
| Shimadzu Corporation | 6347 |
1 |
| Rockwell Collins, Inc. | 2551 |
1 |
| Georgia Tech Research Corporation | 2950 |
1 |
| Japan Science and Technology Agency | 1212 |
1 |
| Boe Technology Group Co., Ltd. | 44074 |
1 |
| Aramco Services Company | 4196 |
1 |
| King Fahd University of Petroleum and Minerals | 1576 |
1 |
| Other owners | 22 |