G01D 5/20
By varying inductance
Official title: by varying inductance, e.g. by a movable armature
G01D5/20 (By varying inductance) appears on 2,878 US grants and 2,766 published applications in this corpus.
Search patents in G01D- Granted patents
- 2,878
- Published applications
- 2,766
- Assignees
- 1,296
- Inventors
- 5,035
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 18 | 0 |
| 1978 | 31 | 0 |
| 1979 | 14 | 0 |
| 1980 | 9 | 0 |
| 1981 | 16 | 0 |
| 1982 | 19 | 0 |
| 1983 | 15 | 0 |
| 1984 | 12 | 0 |
| 1985 | 16 | 0 |
| 1986 | 16 | 0 |
| 1987 | 24 | 0 |
| 1988 | 20 | 0 |
| 1989 | 27 | 0 |
| 1990 | 19 | 0 |
| 1991 | 32 | 0 |
| 1992 | 23 | 0 |
| 1993 | 25 | 0 |
| 1994 | 22 | 0 |
| 1995 | 39 | 0 |
| 1996 | 33 | 0 |
| 1997 | 36 | 0 |
| 1998 | 50 | 0 |
| 1999 | 26 | 0 |
| 2000 | 26 | 0 |
| 2001 | 36 | 17 |
| 2002 | 41 | 56 |
| 2003 | 66 | 66 |
| 2004 | 48 | 66 |
| 2005 | 57 | 73 |
| 2006 | 66 | 51 |
| 2007 | 58 | 54 |
| 2008 | 49 | 78 |
| 2009 | 41 | 59 |
| 2010 | 44 | 64 |
| 2011 | 42 | 45 |
| 2012 | 49 | 55 |
| 2013 | 36 | 72 |
| 2014 | 51 | 77 |
| 2015 | 67 | 151 |
| 2016 | 95 | 162 |
| 2017 | 144 | 183 |
| 2018 | 141 | 146 |
| 2019 | 173 | 174 |
| 2020 | 167 | 156 |
| 2021 | 155 | 189 |
| 2022 | 143 | 181 |
| 2023 | 147 | 156 |
| 2024 | 146 | 182 |
| 2025 | 141 | 151 |
| 2026 | 93 | 102 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Inductive position sensor for small applications6 Oct 2026US 12,754,042 B2Bosch Car Multimedia Portugal, S.A.
- Drive control for a scanner of a LIDAR system29 Sep 2026US 12,748,194 B1Aurora Operations, Inc.
- Electric motor having an angle sensor29 Sep 2026US 12,749,952 B2Sew-Eurodrive GmbH & Co. KG
- Absolute position sensor22 Sep 2026US 12,742,663 B2Allegro MicroSystems, LLC
- Aircraft control surface element monitoring system15 Sep 2026US 12,735,195 B2Moog Wolverhampton Limited
- Position detection device8 Oct 2026US 2026/0307717 A1Proterial, Ltd.
- Encoder and motor8 Oct 2026US 2026/0309516 A1Mitsubishi Electric Corporation
- Home appliance8 Oct 2026US 2026/0313761 A1LG Electronics Inc.
- Compact printed circuit board for an inductive sensor for measuring angular position1 Oct 2026US 2026/0298668 A1Vitesco Technologies GmbH
- Cascaded sense coil arrangement for inductive angular position sensing over multiple angular position measurement ranges1 Oct 2026US 2026/0298669 A1Microchip Technology Incorporated
Most cited
By later US patents
- Self-induction-type stroke sensor1,339US 6,512,360 B1Amiteq Co., Ltd. · 2003
- Eddy current error-reduced AC magnetic position measurement system549US 6,172,499 B2Ascension Technology Corporation · 2001
- Smart instrument tray RFID reader424US 7,362,228 B2Warsaw Orthepedic, Inc. · 2008
- Miniaturized position sensor having photolithographic coils for tracking a medical probe316US 6,201,387 B1Biosense, Inc. · 2001
- Non-concentricity compensation in position and orientation measurement systems313US 5,307,072 APolhemus Incorporated · 1994