G01N 27/4168
Oxidation-reduction potential
Official title: {Oxidation-reduction potential, e.g. for chlorination of water (water analysis G01N33/18)}
G01N27/4168 (Oxidation-reduction potential) appears on 177 US grants and 227 published applications in this corpus.
Search patents in G01N- Granted patents
- 177
- Published applications
- 227
- Assignees
- 137
- Inventors
- 423
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 3 |
| 2004 | 0 | 3 |
| 2005 | 1 | 4 |
| 2006 | 0 | 2 |
| 2007 | 4 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 5 |
| 2010 | 0 | 3 |
| 2011 | 4 | 6 |
| 2012 | 6 | 11 |
| 2013 | 4 | 7 |
| 2014 | 7 | 11 |
| 2015 | 9 | 14 |
| 2016 | 9 | 15 |
| 2017 | 14 | 19 |
| 2018 | 11 | 10 |
| 2019 | 19 | 24 |
| 2020 | 9 | 16 |
| 2021 | 10 | 13 |
| 2022 | 9 | 16 |
| 2023 | 15 | 11 |
| 2024 | 6 | 9 |
| 2025 | 12 | 8 |
| 2026 | 8 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Non-enzymatic glucose-sensing device with nanoporous structure and conditioning of the nanoporous structure8 Sep 2026US 12,727,800 B2UXN Co., Ltd.
- Method and apparatus of characterizing liquid1 Sep 2026US 12,724,005 B2The University of Liverpool
- Water quality monitor system and method1 Sep 2026US 12,724,020 B2Pentair Water Pool and Spa, Inc.
- Amperometric sensor with bubble shedding clip16 Jun 2026US 12,656,292 B2Rosemount Inc.
- Glucose-sensing device with maltose blocking layer19 May 2026US 12,629,064 B2UXN Co., Ltd.
- System for Inference of Dynamics of System to Be Measured Using Redox Potential27 Aug 2026US 2026/0251613 A1Chitose Laboratory Corp.
- Aquatic total alkalinity measurement system and method13 Aug 2026US 2026/0235573 A1Pcfr SAS
- Sensing device having pulsed reference electrodes30 Jul 2026US 2026/0219228 A1AquaSpy, Inc.
- Measurement device for determining a constituent of a fluid sample23 Jul 2026US 2026/0210897 A1ProMinent GmbH
- Method for evaluating oxidation risk of separation membrane, program for evaluating oxidation risk, recording medium, and evaluation device9 Jul 2026US 2026/0192257 A1Toray Industries, Inc.
Most cited
By later US patents
- Method and apparatus for assay of electrochemical properties144US 7,501,052 B2AgaMatrix, Inc. · 2009
- Method and apparatus for automatic analysis108US 6,852,212 B2LifeScan, Inc. · 2005
- Electronic water chemistry analysis device with linear bargraph readouts94US 4,752,740 A1988
- Method and apparatus for quantitative analysis62US 7,189,314 B1Sensicore, Inc. · 2007
- Method and apparatus for automatic analysis47US 6,325,917 B1USF Filtration and Separations Group, Inc. · 2001