G01F 23/20
Indicating or measuring liquid level or level of fluent solid material: by
Official title: by measurement of weight, e.g. to determine the level of stored liquefied gas
G01F23/20 (Indicating or measuring liquid level or level of fluent solid material: by) appears on 313 US grants and 323 published applications in this corpus.
Search patents in G01F- Granted patents
- 313
- Published applications
- 323
- Assignees
- 236
- Inventors
- 667
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 5 | 8 |
| 2002 | 8 | 4 |
| 2003 | 5 | 7 |
| 2004 | 6 | 3 |
| 2005 | 6 | 3 |
| 2006 | 1 | 6 |
| 2007 | 7 | 7 |
| 2008 | 1 | 21 |
| 2009 | 3 | 7 |
| 2010 | 2 | 8 |
| 2011 | 8 | 9 |
| 2012 | 6 | 3 |
| 2013 | 8 | 6 |
| 2014 | 3 | 11 |
| 2015 | 7 | 11 |
| 2016 | 14 | 14 |
| 2017 | 11 | 13 |
| 2018 | 6 | 17 |
| 2019 | 19 | 26 |
| 2020 | 17 | 20 |
| 2021 | 27 | 24 |
| 2022 | 12 | 23 |
| 2023 | 17 | 12 |
| 2024 | 17 | 32 |
| 2025 | 14 | 19 |
| 2026 | 13 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pet consumable container and method of re-supplying pet consumables6 Oct 2026US 12,754,054 B1Pet Parents, LLC
- Pharmaceutical preparation methods and systems using imaging technologies25 Aug 2026US 12,718,346 B2Equashield Medical Ltd.
- Energy transfer from a drum to a displacement element11 Aug 2026US 12,704,107 B2Honeywell International Inc.
- Bin sensor7 Jul 2026US 12,673,816 B2Xorro Pty Ltd
- Tank sensors30 Jun 2026US 12,669,363 B1Mopeka Products LLC
- Hanging Tank Scale1 Oct 2026US 2026/0298687 A1Weber-Stephen Products LLC
- Superconducting fault current limiter having weight sensing unit, and method for measuring refrigerant level using same13 Aug 2026US 2026/0238000 A1Ls Electric Co., Ltd.
- System, method and apparatus for lading measurement in a rail car25 Jun 2026US 2026/0177412 A1BNSF Railway Company
- Spinning-bowl precipitation gauge and method18 Jun 2026US 2026/0169188 A1Hydreon Corporation
- An appliance9 Apr 2026US 2026/0096683 A1Breville Pty Limited
Most cited
By later US patents
- Optical identification and monitoring system using pattern recognition for use with vehicles656US 5,845,000 AAutomotive Technologies International, Inc. · 1998
- Vehicular component control systems and methods554US 6,442,465 B2Automotive Technologies International, Inc. · 2002
- Telematics system503US 6,735,506 B2Automotive Technologies International, Inc. · 2004
- Monitoring using cellular phones263US 8,035,508 B2Intelligent Technologies International, Inc. · 2011
- Optical identification and monitoring system using pattern recognition for use with vehicles163US 5,835,613 AAutomotive Technologies International, Inc. · 1998