- 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: 291
10-year publication summary
|
33
|
26
|
20
|
27
|
16
|
16
|
17
|
16
|
16
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dieterich Standard, Inc. | 63 |
16 |
| Fujikin Incorporated | 692 |
16 |
| Daniel Opco, LLC | 37 |
13 |
| BEST Technologies, Inc. | 29 |
11 |
| Daniel Measurement and Control, Inc. | 69 |
9 |
| Saudi Arabian Oil Company | 13206 |
6 |
| Schlumberger Technology Corporation | 10745 |
5 |
| Altria Client Services LLC | 2202 |
5 |
| GE Precision Healthcare LLC | 5468 |
5 |
| Lam Research Corporation | 5259 |
4 |
| Weatherford Technology Holdings, LLC | 2024 |
4 |
| Rosemount Inc. | 1191 |
4 |
| Surpass Industry Co., Ltd. | 167 |
4 |
| Schneider Electric Systems USA, Inc. | 434 |
4 |
| Schlumberger Canada Limited | 7298 |
3 |
| Schlumberger Technology B.v. | 5163 |
3 |
| Applied Materials, Inc. | 18706 |
3 |
| Ebara Corporation | 2175 |
3 |
| Canada Pipeline Accessories, Co. Ltd. | 91 |
3 |
| Drägerwerk AG & Co. KGaA | 876 |
3 |
| Other owners | 167 |