- 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: 1335
10-year publication summary
|
99
|
86
|
89
|
90
|
65
|
75
|
81
|
69
|
53
|
21
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 14014 |
93 |
| Schlumberger Technology Corporation | 11656 |
77 |
| Micro Motion, Inc. | 1019 |
51 |
| Aramco Services Company | 4163 |
42 |
| Endress+Hauser Flowtec AG | 838 |
39 |
| Schlumberger Canada Limited | 7599 |
32 |
| Schlumberger Technology B.v. | 5284 |
28 |
| Services Petroliers Schlumberger | 6004 |
28 |
| Expro Meters, Inc. | 89 |
21 |
| Schlumberger Holdings Limited | 2712 |
19 |
| Weatherford Technology Holdings, LLC | 2146 |
19 |
| Endress + Hauser Flowtec AG | 617 |
19 |
| Schneider Electric Systems USA, Inc. | 449 |
19 |
| Siemens AG | 24087 |
18 |
| Roxar Flow Measurement AS | 81 |
18 |
| FMC Kongsberg Subsea AS | 170 |
17 |
| Prad Research and Development Limited | 2668 |
17 |
| Chevron U.S.A. Inc. | 4125 |
16 |
| Cidra Corporate Services, Inc. | 201 |
16 |
| Halliburton Energy Services, Inc. | 21294 |
13 |
| Other owners | 733 |