F22B 1/1869
Hot gas water tube boilers not provided for in f22b1/1807 - f22b1/1861
Official title: {Hot gas water tube boilers not provided for in F22B1/1807 - F22B1/1861}
F22B1/1869 (Hot gas water tube boilers not provided for in f22b1/1807 - f22b1/1861) appears on 45 US grants and 30 published applications in this corpus.
Search patents in F22B- Granted patents
- 45
- Published applications
- 30
- Assignees
- 44
- Inventors
- 138
- Latest grant
- 28 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 3 |
| 2020 | 2 | 4 |
| 2021 | 4 | 3 |
| 2022 | 4 | 1 |
| 2023 | 2 | 3 |
| 2024 | 1 | 3 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Boiler28 Jan 2025US 12,209,747 B2Clean Planet Inc.
- Water treatment system2 Apr 2024US 11,944,922 B1
- System and methods for integration of concentrated solar steam generators to Rankine cycle power plants19 Sep 2023US 11,761,622 B2
- Economizer22 Aug 2023US 11,732,885 B2
- Systems and methods for Utilizing flue gas1 Nov 2022US 11,486,572 B2Suncoke Technology and Development LLC
- Heat exchanger tube bundle and related heat recovery steam generator21 Nov 2024US 2024/0384945 A1NEM Energy B.V.
- Steam generator and method24 Oct 2024US 2024/0353093 A1
- Boiler18 Apr 2024US 2024/0125466 A1Clean Planet Inc.
- Closed-loop, dome-shaped, thermal energy storage system7 Dec 2023US 2023/0392876 A1UNM Rainforest Innovations
- Steam Generator2 Nov 2023US 2023/0349545 A1Mackwell Pero & Co Limited
Most cited
By later US patents
- Shell and tube heat exchanger with impingement distributor26US 5,653,282 AThe M. W. Kellogg Company · 1997
- Systems and methods for Utilizing flue gas13US 11,486,572 B2Suncoke Technology and Development LLC · 2022
- Waste heat boiler system, and method of generating superheated high pressure steam11US 4,574,744 AFirma Carl Still GmbH & Co. KG · 1986
- Heat exchanger for recovery of heat energy from dust-containing waste gases10US 4,339,249 AStal-Laval Apparat AB · 1982
- Exhaust gas heat recovery boiler9US 4,664,067 AMitsubishi Jukogyo Kabushiki Kaisha · 1987