G01R 27/26
Measuring inductance or capacitance
Official title: Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants {; Measuring impedance or related variables}
G01R27/26 (Measuring inductance or capacitance) appears on 2,722 US grants and 2,472 published applications in this corpus.
Search patents in G01R- Granted patents
- 2,722
- Published applications
- 2,472
- Assignees
- 1,401
- Inventors
- 5,363
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 23 | 0 |
| 1978 | 13 | 0 |
| 1979 | 13 | 0 |
| 1980 | 17 | 0 |
| 1981 | 22 | 0 |
| 1982 | 14 | 0 |
| 1983 | 15 | 0 |
| 1984 | 25 | 0 |
| 1985 | 19 | 0 |
| 1986 | 12 | 0 |
| 1987 | 22 | 0 |
| 1988 | 30 | 0 |
| 1989 | 37 | 0 |
| 1990 | 10 | 0 |
| 1991 | 19 | 0 |
| 1992 | 21 | 0 |
| 1993 | 16 | 0 |
| 1994 | 23 | 0 |
| 1995 | 32 | 0 |
| 1996 | 26 | 0 |
| 1997 | 15 | 0 |
| 1998 | 14 | 0 |
| 1999 | 20 | 0 |
| 2000 | 5 | 0 |
| 2001 | 27 | 11 |
| 2002 | 28 | 40 |
| 2003 | 25 | 31 |
| 2004 | 47 | 36 |
| 2005 | 35 | 44 |
| 2006 | 36 | 25 |
| 2007 | 38 | 24 |
| 2008 | 21 | 41 |
| 2009 | 18 | 46 |
| 2010 | 32 | 38 |
| 2011 | 26 | 89 |
| 2012 | 41 | 82 |
| 2013 | 73 | 133 |
| 2014 | 96 | 204 |
| 2015 | 128 | 184 |
| 2016 | 191 | 115 |
| 2017 | 170 | 134 |
| 2018 | 152 | 160 |
| 2019 | 147 | 164 |
| 2020 | 179 | 169 |
| 2021 | 143 | 143 |
| 2022 | 135 | 144 |
| 2023 | 139 | 132 |
| 2024 | 113 | 104 |
| 2025 | 129 | 117 |
| 2026 | 69 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Line sensor comprising a capacitive divider with integrated slot antenna6 Oct 2026US 12,754,212 B2Comrod AS
- Circuit for operating a capacitive sensor and sensor apparatus6 Oct 2026US 12,754,221 B2Robert Bosch GmbH
- Sensor controller, electronic device, and control method of sensor controller6 Oct 2026US 12,754,634 B2Wacom Co., Ltd.
- Power conversion system and control method therefor29 Sep 2026US 12,748,139 B2Zhejiang Jinko Energy Storage Co., Ltd.
- Overlay measurement using balanced capacity targets29 Sep 2026US 12,748,354 B2ASML Netherlands B. V.
- Measuring device for capacitance of semiconductor device and measurement jig1 Oct 2026US 2026/0298991 A1Mitsubishi Electric Corporation
- Systems and methods for utilizing two-dimensional displacement for inductive sensing24 Sep 2026US 2026/0287397 A1Cirrus Logic International Semiconductor Ltd.
- Capacitive detection device and methods24 Sep 2026US 2026/0287410 A1Beckman Coulter, Inc.
- Terminal block unit, and monitoring system using the same17 Sep 2026US 2026/0276526 A1Laplace System Co., Ltd.
- Method and device for slot generation in wireless power transmission system17 Sep 2026US 2026/0280356 A1LG Electronics Inc.
Most cited
By later US patents
- Time domain capacitive field detector800US 5,730,165 A1998
- Capacitive field sensor with sigma-delta modulator414US 8,089,289 B1Cypress Semiconductor Corporation · 2012
- Level sensing372US 6,457,355 B12002
- System and method for dual-band antenna matching340US 7,180,467 B2Kyocera Wireless Corp. · 2007
- Touch sensing method and apparatus272US 5,790,107 ALogitech, Inc. · 1998