- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 9/00 - Investigating density or specific gravity of materialsAnalysing materials by determining density or specific gravity
Patent holdings for IPC class G01N 9/00
Total number of patents in this class: 1009
10-year publication summary
|
74
|
72
|
67
|
70
|
105
|
88
|
52
|
49
|
38
|
19
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Micro Motion, Inc. | 1019 |
116 |
| Endress+Hauser Flowtec AG | 821 |
72 |
| Endress + Hauser Flowtec AG | 605 |
45 |
| Halliburton Energy Services, Inc. | 21230 |
38 |
| Endress+Hauser GmbH+Co. KG | 442 |
33 |
| Endress+Hauser SE+Co. KG | 558 |
33 |
| Micromass UK Limited | 1124 |
29 |
| Endress+Hauser Se+co.kg | 363 |
24 |
| Precision Planting LLC | 1169 |
22 |
| Saudi Arabian Oil Company | 13948 |
20 |
| Shanghai Roye Electric Co., Ltd. | 40 |
17 |
| Schlumberger Technology Corporation | 11522 |
16 |
| Air Products and Chemicals, Inc. | 1461 |
14 |
| Endress + Hauser GmbH + Co. KG | 160 |
13 |
| Truedyne Sensors AG | 38 |
11 |
| Schlumberger Canada Limited | 7564 |
8 |
| Simmonds Precision Products, Inc. | 191 |
8 |
| Baker Hughes Incorporated | 5038 |
7 |
| Schlumberger Technology B.v. | 5269 |
6 |
| Massachusetts Institute of Technology | 10208 |
6 |
| Other owners | 471 |