G01N 27/302
Ph sensitive
Official title: {pH sensitive, e.g. quinhydron, antimony or hydrogen electrodes (ion selective electrodes G01N27/333, glass electrodes G01N27/36)}
G01N27/302 (Ph sensitive) appears on 210 US grants and 298 published applications in this corpus.
Search patents in G01N- Granted patents
- 210
- Published applications
- 298
- Assignees
- 148
- Inventors
- 620
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 3 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 4 |
| 2012 | 2 | 13 |
| 2013 | 5 | 9 |
| 2014 | 10 | 23 |
| 2015 | 6 | 19 |
| 2016 | 9 | 11 |
| 2017 | 12 | 27 |
| 2018 | 13 | 13 |
| 2019 | 14 | 25 |
| 2020 | 15 | 33 |
| 2021 | 23 | 23 |
| 2022 | 21 | 22 |
| 2023 | 17 | 21 |
| 2024 | 17 | 19 |
| 2025 | 16 | 15 |
| 2026 | 19 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- pH meter calibration and correction8 Sep 2026US 12,730,090 B2Regeneron Pharmaceuticals, Inc.
- Water quality meter data processing device, water quality meter data processing system and water quality meter data processing method1 Sep 2026US 12,724,000 B2HORIBA Advanced Techno, Co., Ltd.
- Systems and methods of pH modeling and control28 Jul 2026US 12,693,277 B2Regeneron Pharmaceuticals, Inc.
- Reference electrode7 Jul 2026US 12,674,774 B2Oxford University Innovation Limited
- pH sensor measurement23 Jun 2026US 12,663,393 B2Georg Fischer Signet LLC
- Multiple measurements using an electrochemical aptamer-based sensor1 Oct 2026US 2026/0297592 A1The University of Melbourne
- Gamma-sterilizable ph sensor with improved stability against higher pressure and flow1 Oct 2026US 2026/0298863 A1
- Systems and methods of ph modeling and control1 Oct 2026US 2026/0298896 A1Regeneron Pharmaceuticals, Inc.
- Sensor and device for a sensor comprising gel electrolyte24 Sep 2026US 2026/0287544 A1Mettler-Toledo AG
- Multi-functional water quality sensor30 Jul 2026US 2026/0219222 A1The Regents of the University of Michigan
Most cited
By later US patents
- Arrangement for stabilizing a gas-reference electrode103US 4,808,292 A1989
- FAD-conjugated glucose dehydrogenase gene22US 8,492,130 B2Ikeda Food Research Co., Ltd. · 2013
- Devices and processes for carbon dioxide conversion into useful fuels and chemicals22US 9,181,625 B2Dioxide Materials, Inc. · 2015
- Single-use sensors in bioreactors, biotech purification and bioprocessing20US 10,001,454 B2Parker-Hannifin Corporation · 2018
- Antimony electrode assembly and method of manufacture, and use thereof19US 4,681,116 A1987