- 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: 1323
10-year publication summary
|
102
|
99
|
86
|
89
|
90
|
64
|
74
|
76
|
64
|
31
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 12808 |
90 |
| Schlumberger Technology Corporation | 10597 |
76 |
| Micro Motion, Inc. | 1015 |
53 |
| Endress+Hauser Flowtec AG | 807 |
41 |
| Aramco Services Company | 3897 |
40 |
| Schlumberger Canada Limited | 7211 |
32 |
| Schlumberger Technology B.v. | 5141 |
29 |
| Services Petroliers Schlumberger | 5743 |
29 |
| Expro Meters, Inc. | 99 |
22 |
| Schlumberger Holdings Limited | 2846 |
20 |
| Schneider Electric Systems USA, Inc. | 430 |
19 |
| Siemens AG | 24563 |
18 |
| Weatherford Technology Holdings, LLC | 2010 |
18 |
| Endress + Hauser Flowtec AG | 611 |
18 |
| FMC Kongsberg Subsea AS | 251 |
18 |
| Roxar Flow Measurement AS | 84 |
18 |
| Prad Research and Development Limited | 2695 |
17 |
| Cidra Corporate Services, Inc. | 202 |
16 |
| Chevron U.S.A. Inc. | 3914 |
13 |
| Krohne AG | 137 |
13 |
| Other owners | 723 |