F22B 21/24
Bent in serpentine or sinuous form
Official title: bent in serpentine or sinuous form
F22B21/24 (Bent in serpentine or sinuous form) appears on 13 US grants and 11 published applications in this corpus.
Search patents in F22B- Granted patents
- 13
- Published applications
- 11
- Assignees
- 13
- Inventors
- 44
- Latest grant
- 24 Nov 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 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 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 2 | 2 |
| 2019 | 1 | 1 |
| 2020 | 2 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Hinged baffle assembly for heat recovery steam generator24 Nov 2020US 10,845,134 B2General Electric Company
- Multiple pass flexible water tube boiler28 Jul 2020US 10,724,734 B2Superior Boiler, LLC
- Evaporator, rankine cycle apparatus, and combined heat and power system3 Dec 2019US 10,494,957 B2Panasonic Intellectual Property Management Co., Ltd.
- Evaporator, rankine cycle apparatus, and combined heat and power system16 Jan 2018US 9,869,208 B2Panasonic Intellectual Property Management Co., Ltd.
- Combined heat and power system9 Jan 2018US 9,863,280 B2Panasonic Intellectual Property Management Co., Ltd.
- Gas-fired steam-injection boiler for oil field24 Oct 2024US 2024/0353095 A1China Petroleum & Chemical Corporation
- Hinged baffle assembly for heat recovery steam generator19 Sep 2019US 2019/0285366 A1General Electric Company
- Multiple Pass Flexible Water Tube Boiler8 Nov 2018US 2018/0320890 A1English Boiler, LLC
- Evaporator, rankine cycle apparatus, and combined heat and power system12 Apr 2018US 2018/0100411 A1Panasonic Intellectual Property Management Co., Ltd.
- Combined heat and power system11 Feb 2016US 2016/0040556 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Steam generators and combined cycle power plants employing the same16US 4,627,386 ASolar Turbines Incorporated · 1986
- Combined cycle power plant14US 4,989,405 ASolar Turbines Incorporated · 1991
- Advanced heater13US 4,658,762 AGas Research Institute · 1987
- Boiler tube structure11US 4,993,368 AArmada Investment Group Inc. · 1991
- Boiler10US 5,050,542 AVolcano Energy Systems, Inc. · 1991