F23K 5/08
Preparation of fuel
F23K5/08 (Preparation of fuel) appears on 211 US grants and 201 published applications in this corpus.
Search patents in F23K- Granted patents
- 211
- Published applications
- 201
- Assignees
- 146
- Inventors
- 480
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 5 |
| 2003 | 5 | 8 |
| 2004 | 3 | 10 |
| 2005 | 4 | 8 |
| 2006 | 1 | 6 |
| 2007 | 4 | 13 |
| 2008 | 5 | 7 |
| 2009 | 2 | 8 |
| 2010 | 6 | 20 |
| 2011 | 6 | 8 |
| 2012 | 4 | 7 |
| 2013 | 7 | 10 |
| 2014 | 3 | 11 |
| 2015 | 4 | 11 |
| 2016 | 9 | 11 |
| 2017 | 5 | 16 |
| 2018 | 11 | 3 |
| 2019 | 7 | 5 |
| 2020 | 7 | 10 |
| 2021 | 5 | 6 |
| 2022 | 7 | 4 |
| 2023 | 4 | 2 |
| 2024 | 4 | 6 |
| 2025 | 2 | 1 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Arrangement handling purged alcohol-based fuel and a method thereof8 Sep 2026US 12,729,853 B2Alfa Laval Corporate AB
- Fuel oxygen reduction unit for prescribed operating conditions30 Dec 2025US 12,510,021 B2General Electric Company
- Systems for the control and use of fluids and particles in fuel applications including boilers, refinery and chemical fluid heaters, rotary kilns, glass melters, solid dryers, drying ovens, organic fume incinerators, and scrubbers8 Jul 2025US 12,352,437 B2Kamterter Products, LLC
- Systems and methods for coking mitigation in fuel supply systems18 Jun 2024US 12,012,918 B1Hamilton Sundstrand Corporation
- Fuel delivery system having a fuel oxygen reduction unit2 Apr 2024US 11,945,600 B2General Electric Company
- Gas turbine engine fuel system8 Oct 2026US 2026/0309083 A1General Electric Company
- Soot detection method for mild combustion system of tar-containing biomass gasified gas1 Oct 2026US 2026/0298793 A1Tianjin University
- Method for promoting combustion of combustible and enhancing power output and usage life of combustion equipment27 Aug 2026US 2026/0250589 A1Qingdao Hengnengda Energy Technologies Co., Ltd.
- Method for improving fuel efficiency13 Mar 2025US 2025/0084329 A1
- Burner assembly for a domestic fireplace15 Aug 2024US 2024/0271782 A1Kal-Fire Beheer B.V.
Most cited
By later US patents
- Method and apparatus to increase combustion efficiency and to reduce exhaust gas pollutants from combustion of a fuel158US 6,851,413 B1Ronnell Company, Inc. · 2005
- Emulsifying system121US 4,117,550 AFolland Enertec Ltd. · 1978
- Method for reducing the production of NOX in a gas turbine85US 5,974,780 A1999
- Fuel emulsion blending system78US 5,873,916 ACaterpillar Inc. · 1999
- Steam generating system55US 4,930,454 ADresser Industries, Inc. · 1990