G01F 23/2966
Making use of acoustical resonance or standing waves
Official title: {making use of acoustical resonance or standing waves}
G01F23/2966 (Making use of acoustical resonance or standing waves) appears on 339 US grants and 315 published applications in this corpus.
Search patents in G01F- Granted patents
- 339
- Published applications
- 315
- Assignees
- 160
- Inventors
- 544
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 7 | 0 |
| 1987 | 2 | 0 |
| 1988 | 7 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 9 | 0 |
| 1992 | 2 | 0 |
| 1993 | 8 | 0 |
| 1994 | 1 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 0 |
| 2002 | 7 | 10 |
| 2003 | 6 | 11 |
| 2004 | 8 | 17 |
| 2005 | 7 | 6 |
| 2006 | 11 | 23 |
| 2007 | 15 | 14 |
| 2008 | 11 | 7 |
| 2009 | 5 | 11 |
| 2010 | 9 | 12 |
| 2011 | 7 | 7 |
| 2012 | 8 | 12 |
| 2013 | 5 | 13 |
| 2014 | 10 | 18 |
| 2015 | 8 | 14 |
| 2016 | 14 | 17 |
| 2017 | 9 | 8 |
| 2018 | 13 | 18 |
| 2019 | 15 | 15 |
| 2020 | 17 | 18 |
| 2021 | 14 | 11 |
| 2022 | 14 | 15 |
| 2023 | 9 | 9 |
| 2024 | 10 | 10 |
| 2025 | 4 | 12 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vibronic multisensor15 Sep 2026US 12,736,451 B2Endress + Hauser GmbH + Co. KG
- Vibrating fork type field device with coil arrangement to induce vibration7 Apr 2026US 12,596,101 B2Rosemount Tank Radar AB
- Automatic chemical analysis apparatus and electrical impedance spectrometry device30 Dec 2025US 12,510,553 B2Hitachi High-Tech Corporation
- Signal transmission system25 Nov 2025US 12,483,294 B2Endress + Hauser Flowtec AG
- Method for operating a vibronic sensor26 Aug 2025US 12,399,055 B2Endress + Hauser GmbH + Co. KG
- Device for determining and/or monitoring at least one process variable of a medium13 Aug 2026US 2026/0235433 A1Endress + Hauser GmbH + Co. KG
- Method for determining and/or monitoring the viscosity of a medium, and vibration sensor23 Jul 2026US 2026/0210827 A1Endress + Hauser GmbH + Co. KG
- A level sensing system and a method of operating a level sensing system21 May 2026US 2026/0139987 A1Hydro International plc
- Filling level monitoring device for monitoring the filling level of a fluid container, hydrogen tank, and aircraft comprising such hydrogen tank14 May 2026US 2026/0132891 A1
- Vibrating fork level sensor probe arrangement26 Mar 2026US 2026/0085962 A1Rosemount Tank Radar AB
Most cited
By later US patents
- Device for monitoring a predetermined level in a container305US 6,205,855 B1Endress + Hauser GmbH + Co. KG · 2001
- System for monitoring fluent material within a container122US 4,811,595 AApplied Acoustic Research · 1989
- Phase track system for monitoring fluid material within a container73US 4,991,433 AApplied Acoustic Research · 1991
- Liquid detecting piezoelectric device, liquid container and mounting module member72US 6,470,744 B1Seiko Epson Corporation · 2002
- Resonator sensors employing piezoelectric benders for fluid property sensing70US 6,044,694 AVideojet Systems International, Inc. · 2000