- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 9/12 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
Patent holdings for IPC class G01N 9/12
Total number of patents in this class: 19
10-year publication summary
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1
|
1
|
0
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3
|
1
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1
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1
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7
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20730 |
2 |
| My Bacchus | 2 |
2 |
| Illinois Tool Works Inc. | 11392 |
1 |
| Siemens AG | 24568 |
1 |
| Honeywell International Inc. | 13557 |
1 |
| NEC Corporation | 35291 |
1 |
| Cypress Semiconductor Corporation | 1755 |
1 |
| The Johns Hopkins University | 5637 |
1 |
| Airmo, Inc. | 20 |
1 |
| Florida Atlantic University Board of Trustees | 92 |
1 |
| Newpark Drilling Fluids LLC | 41 |
1 |
| Equinor Energy AS | 489 |
1 |
| Provina Incorporated | 3 |
1 |
| DAin Level Co., Ltd | 2 |
1 |
| Sandeul Information & Technologies Co., Ltd. | 1 |
1 |
| Sandeul Information & Technology Co., Ltd. | 2 |
1 |
| Logichive Solutions Private Limited | 1 |
1 |
| Other owners | 0 |