- All sections
- G - Physics
- G01F - Measuring volume, volume flow, mass flow, or liquid levelmetering by volume
- G01F 1/74 - Devices for measuring flow of a fluid or flow of a fluent solid material in suspension in another fluid
Patent holdings for IPC class G01F 1/74
Total number of patents in this class: 1339
10-year publication summary
|
84
|
85
|
80
|
83
|
83
|
59
|
69
|
75
|
65
|
45
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13569 |
94 |
| Schlumberger Technology Corporation | 10994 |
75 |
| Micro Motion, Inc. | 1013 |
52 |
| Aramco Services Company | 4077 |
42 |
| Endress+Hauser Flowtec AG | 813 |
39 |
| Schlumberger Canada Limited | 7410 |
32 |
| Schlumberger Technology B.v. | 5210 |
29 |
| Services Petroliers Schlumberger | 5866 |
29 |
| Expro Meters, Inc. | 100 |
23 |
| Schlumberger Holdings Limited | 2795 |
20 |
| Weatherford Technology Holdings, LLC | 2029 |
19 |
| Endress + Hauser Flowtec AG | 611 |
19 |
| Schneider Electric Systems USA, Inc. | 444 |
19 |
| Siemens AG | 24344 |
18 |
| FMC Kongsberg Subsea AS | 186 |
17 |
| Prad Research and Development Limited | 2688 |
17 |
| Roxar Flow Measurement AS | 81 |
17 |
| Cidra Corporate Services, Inc. | 203 |
16 |
| Chevron U.S.A. Inc. | 4007 |
13 |
| Krohne AG | 137 |
13 |
| Other owners | 736 |