C25B 1/21
Manganese oxides
C25B1/21 (Manganese oxides) appears on 70 US grants and 52 published applications in this corpus.
Search patents in C25B- Granted patents
- 70
- Published applications
- 52
- Assignees
- 48
- Inventors
- 204
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 2 |
| 2002 | 0 | 3 |
| 2003 | 4 | 2 |
| 2004 | 2 | 3 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 1 | 6 |
| 2014 | 4 | 4 |
| 2015 | 2 | 5 |
| 2016 | 2 | 2 |
| 2017 | 3 | 2 |
| 2018 | 5 | 1 |
| 2019 | 2 | 2 |
| 2020 | 0 | 2 |
| 2021 | 3 | 1 |
| 2022 | 1 | 3 |
| 2023 | 1 | 0 |
| 2024 | 1 | 3 |
| 2025 | 1 | 3 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrolytic manganese dioxide, method for manufacturing same, and use thereof21 Oct 2025US 12,448,300 B2Tosoh Corporation
- Electrolytic manganese dioxide, method for producing same, and use of same19 Mar 2024US 11,936,040 B2Tosoh Corporation
- Method for stepwise extraction of silica and hydroxide from silicate substances26 Dec 2023US 11,851,333 B2
- Electrolytic manganese dioxide and method for its production, and its application4 Jan 2022US 11,214,496 B2Tosoh Corporation
- Sulfide recycling in manganese production4 May 2021US 10,995,413 B2
- Electrode24 Sep 2026US 2026/0286552 A1Tosoh Corporation
- Electrolytic manganese dioxide and method for producing the same and use of the same26 Mar 2026US 2026/0085432 A1Tosoh Corporation
- Improved Systems And Methods For Metal Recovery From Lithium Ion Batteries3 Jul 2025US 2025/0215523 A1Aqua Metals Inc.
- Method for oxidizing manganese species in a treatment device6 Feb 2025US 2025/0043435 A1Atotech Deutschland GmbH
- Method for oxidizing manganese species in a treatment device and treatment device2 Jan 2025US 2025/0003082 A1Atotech Deutschland GmbH
Most cited
By later US patents
- Electrodies containing a conductive metal oxide52US 5,045,170 AGlobe-Union Inc. · 1991
- Process for producing electrolytic manganese dioxide from geothermal brines38US 6,682,644 B2MidAmerican Energy Holdings Company · 2004
- Selective recovery of manganese, lead and zinc27US 8,518,232 B1Simbol Inc. · 2013
- Nonaqueous electrolyte cell22US 4,863,817 ABridgestone Corporation · 1989
- Process for the preparation electrolytic manganese dioxide19US 4,818,354 AHoechst Aktiengesellschaft · 1989