G01F 23/296
Acoustic waves
G01F23/296 (Acoustic waves) appears on 1,628 US grants and 1,451 published applications in this corpus.
Search patents in G01F- Granted patents
- 1,628
- Published applications
- 1,451
- Assignees
- 796
- Inventors
- 2,863
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 11 | 0 |
| 1981 | 8 | 0 |
| 1982 | 9 | 0 |
| 1983 | 5 | 0 |
| 1984 | 10 | 0 |
| 1985 | 13 | 0 |
| 1986 | 14 | 0 |
| 1987 | 14 | 0 |
| 1988 | 18 | 0 |
| 1989 | 22 | 0 |
| 1990 | 28 | 0 |
| 1991 | 29 | 0 |
| 1992 | 27 | 0 |
| 1993 | 26 | 0 |
| 1994 | 20 | 0 |
| 1995 | 29 | 0 |
| 1996 | 19 | 0 |
| 1997 | 27 | 0 |
| 1998 | 42 | 0 |
| 1999 | 26 | 0 |
| 2000 | 26 | 0 |
| 2001 | 33 | 9 |
| 2002 | 24 | 33 |
| 2003 | 39 | 29 |
| 2004 | 26 | 41 |
| 2005 | 31 | 39 |
| 2006 | 29 | 55 |
| 2007 | 32 | 50 |
| 2008 | 28 | 49 |
| 2009 | 28 | 47 |
| 2010 | 35 | 50 |
| 2011 | 42 | 42 |
| 2012 | 42 | 46 |
| 2013 | 29 | 47 |
| 2014 | 48 | 76 |
| 2015 | 49 | 67 |
| 2016 | 54 | 72 |
| 2017 | 52 | 75 |
| 2018 | 60 | 73 |
| 2019 | 81 | 77 |
| 2020 | 82 | 88 |
| 2021 | 67 | 74 |
| 2022 | 66 | 75 |
| 2023 | 48 | 78 |
| 2024 | 68 | 61 |
| 2025 | 58 | 55 |
| 2026 | 26 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fill level gauge15 Sep 2026US 12,736,385 B2Endress + Hauser GmbH + Co. KG
- Vibronic multisensor15 Sep 2026US 12,736,451 B2Endress + Hauser GmbH + Co. KG
- Calibration of modular fill-level gauges8 Sep 2026US 12,729,997 B2Endress + Hauser GmbH + Co. KG
- Sensor arrangements, sensor systems, and methods for determining height of liquids in tanks1 Sep 2026US 12,723,906 B2Mopeka Products LLC
- Sensor device for measuring the level of material contained in a container25 Aug 2026US 12,716,763 B2Lesaffre Et Compagnie
- Measuring device for autonomous and wireless detection of fluid media in an environment8 Oct 2026US 2026/0309533 A1Arianegroup SAS
- Storage container1 Oct 2026US 2026/0298691 A1Kathema GmbH
- Volumetric measurement device, system and method17 Sep 2026US 2026/0276423 A1DEKA Products Limited Partnership
- Fluid storage systems and monitoring27 Aug 2026US 2026/0251492 A1Darling Ingredients Inc.
- Determining acoustic characteristics of sample containers and fluid samples therein using reflected acoustic signals27 Aug 2026US 2026/0251622 A1Labcyte Inc.
Most cited
By later US patents
- Automatic liquid dispenser and refrigerator with the same865US 7,661,448 B2LG Electronics Inc. · 2010
- 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
- Device for monitoring a predetermined level in a container305US 6,205,855 B1Endress + Hauser GmbH + Co. KG · 2001