G01R 23/07
Using response of circuits tuned on resonance
Official title: using response of circuits tuned on resonance, e.g. grid-drip meter
G01R23/07 (Using response of circuits tuned on resonance) appears on 26 US grants and 20 published applications in this corpus.
Search patents in G01R- Granted patents
- 26
- Published applications
- 20
- Assignees
- 28
- Inventors
- 58
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 3 |
| 2018 | 4 | 3 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 3 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wireless power transmission system for detecting optimal resonance frequency and method of detecting optimal resonance frequency using the same15 Sep 2026US 12,738,767 B2Banf Co., Ltd.
- RF-based special material detection system with secure multi-dimensional authentication12 May 2026US 12,625,089 B2Quantum IP, LLC
- RF-based special material detection system with secure multi-dimensional authentication29 Jul 2025US 12,372,480 B1Quantum IP, LLC
- Implantable or insertable nuclear magnetic resonant imaging system10 Dec 2024US 12,164,010 B2International Business Machines Corporation
- Pulse measurement device14 Feb 2023US 11,579,175 B2National Cheng Kung University
- Rf-based special material detection system with secure multi-dimensional authentication8 Jan 2026US 2026/0009741 A1Quantum IP, LLC
- Wireless power transmission system for detecting optimal resonance frequency and method of detecting optimal resonance frequency using the same23 Jan 2025US 2025/0030272 A1Banf Co., Ltd.
- Apparatus having a six-port circuit and method for operating same9 May 2024US 2024/0151754 A1Friedrich-Alexander-Universität Erlangen-Nürnberg
- Pulse measurement device21 Oct 2021US 2021/0325436 A1National Cheng Kung University
- Implantable or insertable nuclear magnetic resonant imaging system9 Jan 2020US 2020/0011946 A1International Business Machines Corporation
Most cited
By later US patents
- Apparatus and method for the detection and measurement of liquid water and ice layers on the surfaces of solid materials64US 5,686,841 AStolar, Inc. · 1997
- Linear position sensor using a coaxial resonant cavity56US 4,737,705 ACaterpillar Inc. · 1988
- Control circuitry for quartz crystal deposition monitor24US 5,117,192 ALeybold Inficon, Inc. · 1992
- Frequency rectification system: apparatus and method19US 7,065,474 B2Bently Nevada, LLC · 2006
- RF-based special material detection system with secure multi-dimensional authentication7US 12,372,480 B1Quantum IP, LLC · 2025