C25B 1/36
In mercury cathode cells
Official title: in mercury cathode cells
C25B1/36 (In mercury cathode cells) appears on 34 US grants and 8 published applications in this corpus.
Search patents in C25B- Granted patents
- 34
- Published applications
- 8
- Assignees
- 23
- Inventors
- 81
- Latest grant
- 31 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 2 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Process and plant for producing hydrogen by steam reforming and high-temperature electrolysis31 Dec 2024US 12,180,073 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Process for removing water from alkali metal amalgam14 May 2013US 8,440,067 B2BASF SE
- Device for the separation of mercury from caustic soda in chlor-alkali plants10 Jul 2012US 8,216,444 B2Industrie De Nora S.P.A.
- End-box for mercury cathode alkali chloride electrolysis cell19 Jun 2012US 8,202,405 B2Industrie De Nora S.P.A.
- Amalgam decomposer for mercury cathode cells for alkali chloride electrolysis22 Nov 2011US 8,062,712 B2Industrie De Nora S.P.A.
- Process and plant for producing hydrogen by steam reforming and high-temperature electrolysis17 Mar 2022US 2022/0081290 A1L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Electrolyteless fuel cell system18 Feb 2021US 2021/0050605 A1
- Brine mining process22 Sep 2016US 2016/0272513 A1Blue Cube IP LLC
- Process for removing water from alkali metal amalgam10 Dec 2009US 2009/0301897 A1BASF SE
- Amalgam Decomposer for Mercury Cathode Cells for Alkali Chloride Electrolysis12 Feb 2009US 2009/0038956 A1Industrie De Nora S.P.A.
Most cited
By later US patents
- Process for the purification of electrolysis brine47US 3,970,528 ABayer Aktiengesellschaft · 1976
- End-box for mercury cathode alkali chloride electrolysis cell24US 8,202,405 B2Industrie De Nora S.P.A. · 2012
- Process for removing mercury from brine sludges10US 4,124,459 AStauffer Chemical Company · 1978
- Electrolysis method10US 4,410,403 AAluminum Company of America · 1983
- Horizontal electrolyzers with mercury cathode8US 4,101,407 ACommissariat A L' Energie Atomique · 1978