- All sections
- G - Physics
- G01F - Measuring volume, volume flow, mass flow, or liquid levelmetering by volume
- G01F 1/42 - Orifices or nozzles
Patent holdings for IPC class G01F 1/42
Total number of patents in this class: 293
10-year publication summary
|
26
|
20
|
27
|
16
|
16
|
17
|
16
|
17
|
16
|
9
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dieterich Standard, Inc. | 60 |
16 |
| Fujikin Incorporated | 696 |
14 |
| BEST Technologies, Inc. | 32 |
11 |
| Daniel Opco, LLC | 22 |
7 |
| Daniel Measurement and Control, Inc. | 59 |
6 |
| Rosemount Inc. | 1145 |
6 |
| Saudi Arabian Oil Company | 14235 |
6 |
| Schlumberger Technology Corporation | 11818 |
5 |
| Altria Client Services LLC | 2435 |
5 |
| GE Precision Healthcare LLC | 5788 |
5 |
| Weatherford Technology Holdings, LLC | 2155 |
4 |
| Endress+Hauser Flowtec AG | 831 |
4 |
| Freeport Minerals Corporation | 135 |
4 |
| Schneider Electric Systems USA, Inc. | 441 |
4 |
| Schlumberger Canada Limited | 7606 |
3 |
| Schlumberger Technology B.v. | 5298 |
3 |
| Applied Materials, Inc. | 20375 |
3 |
| Lam Research Corporation | 5635 |
3 |
| Chevron U.S.A. Inc. | 4140 |
3 |
| Ebara Corporation | 2323 |
3 |
| Other owners | 178 |