G01N 27/028
Circuits therefor
Official title: {Circuits therefor (measuring impedance per se G01R27/02)}
G01N27/028 (Circuits therefor) appears on 244 US grants and 324 published applications in this corpus.
Search patents in G01N- Granted patents
- 244
- Published applications
- 324
- Assignees
- 201
- Inventors
- 691
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 2 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 3 |
| 2011 | 1 | 3 |
| 2012 | 1 | 2 |
| 2013 | 3 | 14 |
| 2014 | 2 | 5 |
| 2015 | 7 | 14 |
| 2016 | 8 | 19 |
| 2017 | 12 | 26 |
| 2018 | 22 | 21 |
| 2019 | 22 | 31 |
| 2020 | 23 | 37 |
| 2021 | 26 | 33 |
| 2022 | 22 | 29 |
| 2023 | 29 | 14 |
| 2024 | 27 | 27 |
| 2025 | 20 | 22 |
| 2026 | 11 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Receiver for a pulsed eddy current system11 Aug 2026US 12,704,479 B2ABB Schweiz AG
- System and apparatus for generating dynamic reference voltage in power constrained devices4 Aug 2026US 12,700,829 B2
- Determining impedance of physical system7 Jul 2026US 12,674,827 B2Baars Beheer B.V.
- Smart holiday detector16 Jun 2026US 12,656,286 B2Saudi Arabian Oil Company
- Dielectric spectroscopy sensing apparatus and method of use9 Jun 2026US 12,650,397 B2XaTek, Inc.
- An organ container, an impedance meter for the organ container, and a method for defining a deterioration state of an organ8 Oct 2026US 2026/0305604 A1Tampere University Foundation sr
- Apparatus and method for measuring electrochemical impedance spectroscopy8 Oct 2026US 2026/0309659 A1SK On Co., Ltd.
- System for detecting defects within a fluid flowing through a circuit comprising a fluidic device, and for preventing failure of the device as a result of the defects8 Oct 2026US 2026/0309660 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Microfluidic integrated cmos based impedance array biosensor8 Oct 2026US 2026/0309661 A1University of Utah Research Foundation
- A hair cutting device and an attachment therefore27 Aug 2026US 2026/0249496 A1Koninklijke Philips N. V.
Most cited
By later US patents
- Graphene-based multi-modal sensors121US 9,863,885 B2The Regents of the University of Californa · 2018
- Programmable multiplexed active biologic array99US 7,267,751 B2Nanogen, Inc. · 2007
- System and method for controlling an agricultural system based on soil analysis47US 9,516,802 B2CNH Industrial America LLC · 2016
- Material analysis including density and moisture content determinations46US 7,219,024 B2TransTech Systems, Inc. · 2007
- Admittance measuring system for monitoring the condition of materials33US 4,146,834 ADrexelbrook Controls, Inc. · 1979