- All sections
- G - Physics
- G01F - Measuring volume, volume flow, mass flow, or liquid level; metering by volume
- G01F 23/22 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
Patent holdings for IPC class G01F 23/22
Total number of patents in this class: 372
10-year publication summary
|
29
|
34
|
42
|
39
|
41
|
28
|
33
|
17
|
22
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hewlett-Packard Development Company, L.P. | 28538 |
18 |
| Mitsubishi Electric Corporation | 43934 |
16 |
| Robert Bosch GmbH | 40953 |
6 |
| Advanced Liquid Logic, Inc. | 156 |
5 |
| Fisher & Paykel Healthcare Limited | 2218 |
5 |
| Fujikin Incorporated | 671 |
5 |
| Honeywell International Inc. | 13799 |
4 |
| Murata Manufacturing Co., Ltd. | 22355 |
4 |
| Altria Client Services LLC | 1866 |
4 |
| Areva NP GmbH | 79 |
4 |
| Vega Grieshaber KG | 690 |
4 |
| Tank Vision, Inc. | 4 |
4 |
| Robert Bosch Limitada | 109 |
4 |
| Silicon Controls Pty Ltd. | 30 |
4 |
| Schlumberger Canada Limited | 6913 |
3 |
| Schlumberger Technology B.v. | 4951 |
3 |
| The Boeing Company | 19843 |
3 |
| Caterpillar Inc. | 8877 |
3 |
| Pitco Frialator, Inc. | 47 |
3 |
| Scania CV AB | 2330 |
3 |
| Other owners | 267 |