G01N 27/423
Coulometry
Official title: {Coulometry}
G01N27/423 (Coulometry) appears on 75 US grants and 44 published applications in this corpus.
Search patents in G01N- Granted patents
- 75
- Published applications
- 44
- Assignees
- 71
- Inventors
- 213
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 3 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 0 | 4 |
| 2013 | 0 | 2 |
| 2014 | 6 | 2 |
| 2015 | 2 | 0 |
| 2016 | 1 | 4 |
| 2017 | 0 | 2 |
| 2018 | 2 | 3 |
| 2019 | 3 | 1 |
| 2020 | 3 | 2 |
| 2021 | 3 | 1 |
| 2022 | 1 | 1 |
| 2023 | 0 | 3 |
| 2024 | 0 | 2 |
| 2025 | 2 | 2 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrochemical cell stirring17 Mar 2026US 12,578,303 B2Hach Company
- Ion sensor and method for measuring ions30 Sep 2025US 12,429,451 B2National University Corporation Kyoto Institute of Technology
- Electrochemical cell stirring28 Jan 2025US 12,210,007 B2Hach Company
- Apparatus and method for targeted biodetection using a phage carrying a single electron transistor21 Jun 2022US 11,366,105 B2Neuro-Kinesis Inc.
- Electrochemical method for detection and quantification of organic compounds in water17 Aug 2021US 11,092,585 B2Giner, Inc.
- Microscale electrochemistry on a plate for rapid evaluation of electrochemical systems27 Aug 2026US 2026/0251612 A1Wisconsin Alumni Research Foundation
- Method and system for real-time detection and quantification of per- and polyfluoroalkyl substances27 Aug 2026US 2026/0251614 A1Texas Tech University System
- Apparatus and method for determining coulombic efficiency of lithium metal battery20 Aug 2026US 2026/0243725 A1Hyundai Motor Company
- Sensor electrode for halogen determination and method for manufacturing a sensor electrode4 Jun 2026US 2026/0153472 A1Analytik Jena AG
- Device and method for testing an electrochemical sensor29 Jan 2026US 2026/0029363 A1
Most cited
By later US patents
- Coulometer71US 4,323,849 AHybricon Corporation · 1982
- Coulometric analysis method and a device therefor55US 5,726,565 ANakano Vinegar Co., Ltd. · 1998
- Coulometric analysis52US 5,958,779 A1999
- Apparatus for use in rapid and accurate controlled-potential coulometric analysis39US 4,244,800 AThe United States of America as represented by the United States Department of Energy · 1981
- Coulometric analysis method and a device therefor36US 5,909,114 ANakano Vinegar Co., Ltd. · 1999