F28G 11/00
Cleaning by combustion
Official title: Cleaning by combustion, e.g. using squibs, using travelling burners {(F28G7/005 takes precedence)}
F28G11/00 (Cleaning by combustion) appears on 8 US grants and 7 published applications in this corpus.
Search patents in F28G- Granted patents
- 8
- Published applications
- 7
- Assignees
- 8
- Inventors
- 21
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 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 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Catalyst regeneration system utilization for heat exchanger decoking3 Mar 2026US 12,564,831 B2Saudi Arabian Oil Company
- Combustion cleaning system and method5 Apr 2022US 11,293,706 B2
- Combustion cleaning system and method24 Nov 2020US 10,845,137 B2
- Method for weakening and removing coke and carbonaceous deposits7 Jul 2020US 10,702,897 B2Praxair Technology, Inc.
- Online bakeout of regenerative oxidizers13 Dec 2005US 6,974,318 B2Durr Environmental, Inc.
- Method for preventing contamination in heat exchangers8 Oct 2026US 2026/0309436 A1Kiturami Co., Ltd.
- Catalyst regeneration system utilization for heat exchanger decoking27 Nov 2025US 2025/0360500 A1Saudi Arabian Oil Company
- Air preheater and method of decomposing and removing ammonium bisulfate from a regenerative heating element of that air preheater18 Mar 2021US 2021/0080104 A1University of Kentucky Research Foundation
- Combustion cleaning system and method7 Jan 2021US 2021/0003356 A1
- Combustion cleaning system and method4 Jun 2020US 2020/0173743 A1
Most cited
By later US patents
- Process for the cleaning of heat exchangers for exhaust gases from engines12US 4,593,748 AKramb Mothermik KG · 1986
- Method for thermally de-sooting heat transfer surfaces9US 4,047,972 AWestinghouse Electric Corp. · 1977
- Online bakeout of regenerative oxidizers6US 6,974,318 B2Durr Environmental, Inc. · 2005
- Minimizing coke buildup in transfer line heat exchangers5US 4,703,793 ASante Fe Braun Inc. · 1987