- 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 materials; Analysing materials by determining density or specific gravity
Patent holdings for IPC class G01N 9/00
Total number of patents in this class: 971
10-year publication summary
|
56
|
100
|
74
|
72
|
67
|
70
|
104
|
87
|
47
|
10
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Micro Motion, Inc. | 1011 |
119 |
| Endress+Hauser Flowtec AG | 794 |
64 |
| Halliburton Energy Services, Inc. | 20165 |
39 |
| Endress + Hauser Flowtec AG | 585 |
38 |
| Endress+Hauser GmbH+Co. KG | 509 |
36 |
| Micromass UK Limited | 1121 |
29 |
| Endress+Hauser SE+Co. KG | 428 |
29 |
| Endress+Hauser Se+co.kg | 301 |
21 |
| Precision Planting LLC | 925 |
16 |
| Saudi Arabian Oil Company | 11322 |
16 |
| Schlumberger Technology Corporation | 9690 |
15 |
| Air Products and Chemicals, Inc. | 1448 |
15 |
| Shanghai Roye Electric Co., Ltd. | 37 |
15 |
| Endress + Hauser GmbH + Co. KG | 181 |
13 |
| Schlumberger Canada Limited | 6913 |
10 |
| Truedyne Sensors AG | 30 |
9 |
| Schlumberger Technology B.v. | 4951 |
8 |
| Baker Hughes Incorporated | 5689 |
8 |
| Services Petroliers Schlumberger | 5426 |
8 |
| Simmonds Precision Products, Inc. | 286 |
8 |
| Other owners | 455 |