F23C 2900/99008
Unmixed combustion, i.e. without direct mixing of oxygen gas and fuel, but
Official title: Unmixed combustion, i.e. without direct mixing of oxygen gas and fuel, but using the oxygen from a metal oxide, e.g. FeO
F23C2900/99008 (Unmixed combustion, i.e. without direct mixing of oxygen gas and fuel, but) appears on 115 US grants and 147 published applications in this corpus.
Search patents in F23C- Granted patents
- 115
- Published applications
- 147
- Assignees
- 65
- Inventors
- 283
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 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 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 4 |
| 2005 | 1 | 2 |
| 2006 | 0 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 3 |
| 2009 | 1 | 6 |
| 2010 | 2 | 5 |
| 2011 | 1 | 14 |
| 2012 | 1 | 7 |
| 2013 | 6 | 12 |
| 2014 | 7 | 14 |
| 2015 | 8 | 8 |
| 2016 | 10 | 7 |
| 2017 | 14 | 9 |
| 2018 | 11 | 5 |
| 2019 | 10 | 9 |
| 2020 | 8 | 3 |
| 2021 | 3 | 5 |
| 2022 | 3 | 8 |
| 2023 | 7 | 7 |
| 2024 | 6 | 6 |
| 2025 | 5 | 5 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- CLC method and plant with recovery of gaseous oxygen produced by an oxygen carrier29 Sep 2026US 12,747,859 B2Ifp Energies Nouvelles
- Integrated method for thermal conversion and indirect combustion of a heavy hydrocarbon feedstock in a redox chemical loop for producing hydrocarbon streams and capturing the CO2 produced17 Mar 2026US 12,577,470 B2Ifp Energies Nouvelles
- Scheduling of semi-batch chemical-looping reactors29 Jul 2025US 12,370,520 B2University of Connecticut
- Methods for dehydrogenating hydrocarbons1 Jul 2025US 12,344,577 B2Dow Global Technologies LLC
- Chemical looping carrier compositions, binders, and related methods13 May 2025US 12,296,384 B1
- Method for performing mechanical work, arrangement for performing mechanical work, and method for converting mechanical energy into electrical energy24 Sep 2026US 2026/0287177 A1
- Iron fuel combustion arrangement11 Jun 2026US 2026/0160416 A1Renewable Iron Fuel Technology B.V.
- Methods for dehydrogenating hydrocarbons26 Mar 2026US 2026/0085025 A1Dow Global Technologies LLC
- Chemical loop reaction system23 Oct 2025US 2025/0327569 A1Tokyo Ohka Kogyo.Co., Ltd.
- Arrangements for chemical looping combustion systems18 Sep 2025US 2025/0290627 A1
Most cited
By later US patents
- Self-contained heating unit and drug-supply unit employing same102US 8,387,612 B2Alexza Pharmaceuticals, Inc. · 2013
- Manufacture of combustible gases75US 3,969,089 AExxon Research & Engineering Co. · 1976
- Autothermal methods and systems for fuels conversion64US 6,007,699 AEnergy and Environmental Research Corporation · 1999
- Methods and systems for heat transfer by unmixed combustion62US 5,827,496 AEnergy and Environmental Research Corporation · 1998
- Chemical-looping combustion power generation plant system54US 5,447,024 AThe Tokyo Electric Power Company, Incorporated · 1995