G01F 23/2965
Measuring attenuation of transmitted waves
G01F23/2965 (Measuring attenuation of transmitted waves) appears on 148 US grants and 109 published applications in this corpus.
Search patents in G01F- Granted patents
- 148
- Published applications
- 109
- Assignees
- 105
- Inventors
- 288
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 2 |
| 2002 | 3 | 1 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 4 |
| 2007 | 1 | 5 |
| 2008 | 4 | 5 |
| 2009 | 1 | 1 |
| 2010 | 5 | 4 |
| 2011 | 2 | 2 |
| 2012 | 1 | 6 |
| 2013 | 2 | 7 |
| 2014 | 7 | 15 |
| 2015 | 6 | 8 |
| 2016 | 7 | 3 |
| 2017 | 12 | 4 |
| 2018 | 4 | 4 |
| 2019 | 6 | 5 |
| 2020 | 6 | 3 |
| 2021 | 3 | 5 |
| 2022 | 3 | 6 |
| 2023 | 7 | 5 |
| 2024 | 1 | 2 |
| 2025 | 2 | 4 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- Apparatus for level measurements288US 4,535,628 A1985
- Ultrasonic system for measuring fluid impedance or liquid level183US 4,320,659 APanametrics, Inc. · 1982
- Controller for ultrasonic sensors181US 5,437,178 AKay-Ray/Sensall, Inc. · 1995
- Molten glass viscosity and/or level meter65US 6,250,136 B12001
- Single transducer liquid level detector59US 4,144,517 A1979