G01N 27/045
Circuits
Official title: {Circuits (measuring resistance per se G01R27/00, e.g. G01R27/22)}
G01N27/045 (Circuits) appears on 205 US grants and 236 published applications in this corpus.
Search patents in G01N- Granted patents
- 205
- Published applications
- 236
- Assignees
- 183
- Inventors
- 550
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 2 | 3 |
| 2012 | 1 | 2 |
| 2013 | 2 | 6 |
| 2014 | 3 | 3 |
| 2015 | 3 | 8 |
| 2016 | 12 | 20 |
| 2017 | 7 | 14 |
| 2018 | 14 | 11 |
| 2019 | 12 | 25 |
| 2020 | 22 | 30 |
| 2021 | 20 | 17 |
| 2022 | 11 | 19 |
| 2023 | 25 | 14 |
| 2024 | 15 | 22 |
| 2025 | 14 | 22 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Multi-film resistive gas sensor and system29 Sep 2026US 12,748,065 B2Kabushiki Kaisha Toshiba
- Electrical conductivity detector with phase difference correction22 Sep 2026US 12,742,753 B2Shimadzu Corporation
- Method of measuring a conductivity of a liquid using a conductivity sensor25 Aug 2026US 12,716,857 B2NGK Insulators, Ltd.
- Apparatus and method for detecting foreign substance18 Aug 2026US 12,710,384 B2Silicon-Magic Semiconductor Technology (Hangzhou) Co., Ltd.
- Welding inspection apparatus for battery modules30 Jun 2026US 12,669,458 B2LG Energy Solution, Ltd.
- Method for customizing a biosensor to measure an analyte with high performance parameters by means of artificial intelligence8 Oct 2026US 2026/0309710 A1digid GmbH
- Measuring method and measuring system24 Sep 2026US 2026/0287536 A1Hioki E. E. Corporation
- Determination device17 Sep 2026US 2026/0276481 A1Nsk Ltd.
- Device for detecting fluoride ions in a nitric medium13 Aug 2026US 2026/0235541 A1
- Fluid condition sensing system and methods13 Aug 2026US 2026/0235542 A1Donaldson Company, Inc.
Most cited
By later US patents
- Temperature compensated soil moisture sensor53US 5,430,384 AOnset Computer Corporation · 1995
- Fluid detection system33US 4,586,033 AEmhart Industries, Inc. · 1986
- Apparatus and method to detect moisture33US 6,906,530 B2D.J. Geisel Technology, Inc. · 2005
- Fluid conductivity measurement apparatus32US 3,989,009 ASED Systems Inc. · 1976
- Engine and transmission oil degradation and temperature monitor32US 4,629,334 A1986