G01N 2030/645
Electrical conductivity detectors
Official title: {electrical conductivity detectors}
G01N2030/645 (Electrical conductivity detectors) appears on 75 US grants and 71 published applications in this corpus.
Search patents in G01N- Granted patents
- 75
- Published applications
- 71
- Assignees
- 57
- Inventors
- 197
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 3 |
| 2005 | 2 | 5 |
| 2006 | 2 | 4 |
| 2007 | 1 | 3 |
| 2008 | 3 | 3 |
| 2009 | 2 | 4 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 5 | 3 |
| 2013 | 0 | 2 |
| 2014 | 1 | 2 |
| 2015 | 3 | 5 |
| 2016 | 7 | 1 |
| 2017 | 2 | 5 |
| 2018 | 3 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 7 |
| 2021 | 3 | 3 |
| 2022 | 5 | 5 |
| 2023 | 5 | 1 |
| 2024 | 1 | 2 |
| 2025 | 2 | 3 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrical conductivity detector with phase difference correction22 Sep 2026US 12,742,753 B2Shimadzu Corporation
- Systems and methods for enhanced detection and quantification of chemical species31 Mar 2026US 12,590,941 B1Koloma, Inc.
- Method for the detection and quantification of fosfomycin, impurities and degradation products thereof25 Nov 2025US 12,480,920 B2Meitheal Pharmaceuticals, Inc.
- Amphetamine carbamate compounds and methods22 Jul 2025US 12,365,648 B2Noven Pharmaceuticals, Inc.
- Amphetamine carbamate compounds and methods7 May 2024US 11,976,026 B2Noven Pharmaceuticals, Inc.
- Systems and methods for enhanced detection and quantification of chemical species9 Jul 2026US 2026/0194511 A1Koloma, Inc.
- Combustion gas absorption liquid generation device and combustion ion chromatograph19 Feb 2026US 2026/0049967 A1Shimadzu Corporation
- Chromatograph system8 Jan 2026US 2026/0009773 A1Shimadzu Corporation
- Amphetamine carbamate compounds and methods16 Oct 2025US 2025/0320178 A1Noven Pharmaceuticals, Inc.
- Electrical conductivity detector23 Jan 2025US 2025/0027912 A1Shimadzu Corporation
Most cited
By later US patents
- Sensor devices234US 5,194,133 AGeneral Electric Company · 1993
- Method and apparatus for capacitive deionization, electrochemical purification, and regeneration of electrodes157US 5,425,858 AThe Regents of the University of California · 1995
- Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes139US 6,309,532 B1The Regents of the University of California · 2001
- Method and apparatus for capacitive deionization and electrochemical purification and regeneration of electrodes117US 5,954,937 AThe Regents of the University of California · 1999
- Method for biological testing and/or developing pharmaceuticals for treatment of disorders56US 4,863,873 AESA, Inc. · 1989