F22B 1/1884
Hot gas heating tube boilers with one or more heating tubes
Official title: {Hot gas heating tube boilers with one or more heating tubes}
F22B1/1884 (Hot gas heating tube boilers with one or more heating tubes) appears on 46 US grants and 30 published applications in this corpus.
Search patents in F22B- Granted patents
- 46
- Published applications
- 30
- Assignees
- 32
- Inventors
- 102
- Latest grant
- 29 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 3 |
| 2004 | 1 | 2 |
| 2005 | 3 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 2 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 2 | 2 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Connection tube support of waste heat recovery boiler and waste heat recovery boiler including same29 Oct 2024US 12,130,010 B2Doosanenerbility Co., Ltd.
- Water treatment system2 Apr 2024US 11,944,922 B1
- Method of efficiency enhancement of fired heaters without air preheat systems31 Oct 2023US 11,802,687 B2Uop LLC
- High-efficiency two-chamber boiler using turbulent reverse flow of combustion gases20 Jun 2023US 11,680,704 B2
- Vapour and liquid drum for a shell-and-tube heat exchanger27 Dec 2022US 11,536,447 B2Alfa Laval Olmi S.P.A
- Method for Preparing Steam Using Waste Heat3 Jul 2025US 2025/0216068 A1LG Chem.Ltd.
- Tube sheet protection in a process gas waste heat boiler13 Feb 2025US 2025/0052414 A1Topsoe A/S
- Connection tube support of waste heat recovery boiler and waste heat recovery boiler including same30 May 2024US 2024/0175572 A1Doosan Enerbility Co., Ltd.
- Multi-pass heater25 Jan 2024US 2024/0027098 A1Hc Thermal LLC
- Combustion boiler28 Sep 2023US 2023/0304658 A1
Most cited
By later US patents
- Nested-tube heat exchanger21US 4,700,773 ABorsig GmbH · 1987
- Gas cooler for production of superheated steam18US 4,488,513 ATexaco Development Corporation · 1984
- Waste heat boiler17US 5,452,686 AHaldor Topsoe A/S · 1995
- Heating and sterilizing apparatus and method of using same16US 8,435,459 B2Micropyretics Heaters International, Inc. · 2013
- Oral antilipemic agents14US 4,232,007 ATaiho Pharmaceutical Co., Ltd. · 1980