- All sections
- G - Physics
- G01F - Measuring volume, volume flow, mass flow, or liquid levelmetering by volume
- G01F 3/22 - Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases
Patent holdings for IPC class G01F 3/22
Total number of patents in this class: 183
10-year publication summary
|
13
|
14
|
17
|
12
|
8
|
2
|
11
|
2
|
6
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
63 |
| Panasonic Corporation | 18962 |
52 |
| High Pressure Gas Safety Institute of Japan (The) | 13 |
9 |
| Tokyo Gas Co., Ltd. | 94 |
6 |
| Actaris SAS | 14 |
5 |
| Kyocera Corporation | 14383 |
3 |
| Tokyo Electron Limited | 13824 |
2 |
| Omron Corporation | 7370 |
2 |
| Cameron Technologies Limited | 231 |
2 |
| Roche Diagnostics Operations, Inc. | 1520 |
1 |
| Schlumberger Technology Corporation | 11820 |
1 |
| Schlumberger Canada Limited | 7601 |
1 |
| Schlumberger Technology B.v. | 5295 |
1 |
| Honeywell International Inc. | 12772 |
1 |
| NEC Corporation | 37005 |
1 |
| Yazaki Energy System Corporation | 99 |
1 |
| Analog Devices, Inc. | 3321 |
1 |
| Agilent Technologies, Inc. | 2638 |
1 |
| Empire Technology Development LLC | 1614 |
1 |
| University of Southern California | 2134 |
1 |
| Other owners | 28 |