C25B 15/021
Of heating or cooling
Official title: of heating or cooling
C25B15/021 (Of heating or cooling) appears on 194 US grants and 442 published applications in this corpus.
Search patents in C25B- Granted patents
- 194
- Published applications
- 442
- Assignees
- 195
- Inventors
- 853
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 5 |
| 2006 | 3 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 3 |
| 2010 | 0 | 4 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 3 | 6 |
| 2014 | 0 | 6 |
| 2015 | 2 | 5 |
| 2016 | 5 | 10 |
| 2017 | 6 | 9 |
| 2018 | 3 | 9 |
| 2019 | 9 | 21 |
| 2020 | 7 | 17 |
| 2021 | 7 | 18 |
| 2022 | 19 | 48 |
| 2023 | 28 | 64 |
| 2024 | 42 | 86 |
| 2025 | 29 | 78 |
| 2026 | 19 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatuses and methods for multi-stage electrolysis18 Aug 2026US 12,709,809 B2Noram Electrolysis Systems Inc.
- Method for operating an electrolyzer for hydrogen production18 Aug 2026US 12,709,810 B2Battelle Savannah River Alliance, LLC
- Methods for material activation with thermal energy storage system18 Aug 2026US 12,709,998 B2Rondo Energy, Inc.
- Device for producing azo compound16 Jun 2026US 12,655,528 B2Dongjin Innochem Co., Ltd.
- Electrolysis system and method of use thereof16 Jun 2026US 12,655,531 B2Asahi Kasei Kabushiki Kaisha
- Electrolytic sulfuric acid supply apparatus24 Sep 2026US 2026/0286535 A1SCREEN Holdings Co., Ltd.
- Electrolytic sulfuric acid supply apparatus and water replacement method for electrolytic sulfuric acid supply apparatus24 Sep 2026US 2026/0286536 A1SCREEN Holdings Co., Ltd.
- Electrolysis of molten metal oxides and subsequent uses24 Sep 2026US 2026/0286541 A1
- Water electrolysis system17 Sep 2026US 2026/0275540 A1Honda Motor Co., Ltd.
- Soec integration with ultra hot steam17 Sep 2026US 2026/0275553 A1Bloom Energy Corporation
Most cited
By later US patents
- Propellant generator and method of generating propellants108US 5,505,824 AUnited Technologies Corporation · 1996
- Hydrogen and oxygen gas generating system69US 5,690,797 AMitsubishi Corporation · 1997
- Water decomposing apparatus26US 4,113,601 A1978
- System and method for generating high pressure hydrogen23US 7,048,839 B2Mitsubishi Corporation · 2006
- Energy storage system and applications20US 11,603,776 B2Rondo Energy, Inc. · 2023