H01M 8/04194
Concentration measuring cells
Official title: {Concentration measuring cells}
H01M8/04194 (Concentration measuring cells) appears on 136 US grants and 245 published applications in this corpus.
Search patents in H01M- Granted patents
- 136
- Published applications
- 245
- Assignees
- 101
- Inventors
- 450
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 5 | 10 |
| 2003 | 5 | 11 |
| 2004 | 10 | 8 |
| 2005 | 5 | 23 |
| 2006 | 7 | 44 |
| 2007 | 5 | 50 |
| 2008 | 8 | 29 |
| 2009 | 7 | 21 |
| 2010 | 15 | 11 |
| 2011 | 10 | 9 |
| 2012 | 16 | 6 |
| 2013 | 7 | 0 |
| 2014 | 4 | 2 |
| 2015 | 4 | 3 |
| 2016 | 3 | 3 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 3 |
| 2024 | 2 | 4 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid membrane cell assemblies25 Aug 2026US 12,719,074 B2Skip Technology, Inc.
- Hybrid redox fuel cell system28 May 2024US 11,996,597 B2Ess Tech, Inc.
- Apparatus and method for determining state of charge in a redox flow battery via limiting currents12 Mar 2024US 11,929,528 B2Lockheed Martin Energy, LLC
- Redox flow battery3 Oct 2023US 11,777,120 B2Sumitomo Electric Industries, Ltd.
- Cell for electrochemically determining active species concentrations in redox flow batteries27 Dec 2022US 11,539,061 B2Raytheon Technologies Corporation
- Method for recovering capacity of vanadium redox flow battery12 Dec 2024US 2024/0413369 A1
- Hybrid redox fuel cell system22 Aug 2024US 2024/0282995 A1Ess Tech, Inc.
- Apparatus and method for determining state of charge in a redox flow battery via limiting currents4 Apr 2024US 2024/0113313 A1Lockheed Martin Energy, LLC
- Inline sensors for electrolyte precipitation detection in redox flow battery system21 Mar 2024US 2024/0097172 A1Uop LLC
- Liquid membrane cell assemblies28 Sep 2023US 2023/0307684 A1Skip Technology, Inc.
Most cited
By later US patents
- Nanowire structures comprising carbon135US 7,842,432 B2Nanosys, Inc. · 2010
- Direct methanol feed fuel cell and system113US 5,773,162 ACalifornia Institute of Technology · 1998
- Nanostructured catalyst supports112US 8,278,011 B2Nanosys, Inc. · 2012
- Fuel cell with proton conducting membrane97US 6,492,047 B1Ramot University Authority for Applied Research and Industrial Development Ltd. · 2002
- Fuel cell system for low pressure operation66US 6,054,228 ALynntech, Inc. · 2000