G01F 23/162
By a liquid column
Official title: {by a liquid column}
G01F23/162 (By a liquid column) appears on 64 US grants and 39 published applications in this corpus.
Search patents in G01F- Granted patents
- 64
- Published applications
- 39
- Assignees
- 56
- Inventors
- 152
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 0 | 2 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 3 | 4 |
| 2018 | 2 | 3 |
| 2019 | 0 | 2 |
| 2020 | 2 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 4 |
| 2024 | 1 | 2 |
| 2025 | 1 | 3 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sensor for determining a liquid level for an aircraft tank, assembly of a tank and a sensor, method of using such a sensor28 Jul 2026US 12,693,148 B2Safran Helicopter Engines
- Density invariant displacer-type liquid level measurement utilizing differential pressure transmitter23 Jun 2026US 12,663,304 B2Saudi Arabian Oil Company
- Systems and methods for fuel quantity measurement17 Feb 2026US 12,553,757 B2Simmonds Precision Products, Inc.
- Car wash additive monitoring15 Jul 2025US 12,359,956 B2Franklin Fueling Systems, Inc.
- Device and method for measuring liquid level in a container by a protected pressure sensor7 May 2024US 11,976,956 B2Erm Electronic Systems Ltd.
- Density invariant displacer-type liquid level measurement utilizing differential pressure transmitter4 Sep 2025US 2025/0277687 A1Saudi Arabian Oil Company
- Cryogenic storage control system and storage assembly10 Jul 2025US 2025/0224082 A1
- Alternate Drawdown Testing Method in Wastewater Lift Stations12 Jun 2025US 2025/0189356 A1
- Sensor for determining a liquid level for an aircraft tank, assembly of a tank and a sensor, method of using such a sensor24 Oct 2024US 2024/0353250 A1Safran Helicopter Engines
- Tank system29 Aug 2024US 2024/0288298 A1Deere & Company
Most cited
By later US patents
- Apparatus and method for monitoring a sump pump173US 5,672,050 ALynx Electronics, Inc. · 1997
- Sponge absorbed fluid measuring unit53US 5,285,682 A1994
- Liquid level indicator37US 4,213,338 AGeneral Electric Company · 1980
- Liquid level sensing system36US 5,059,954 AKnight Equipment Corp. · 1991
- Infant nursing bottle and luminescent indicator31US 5,044,509 A1991