F22D 1/08
The tubes having fins, ribs, gills, corrugations, or the like on their
Official title: the tubes having fins, ribs, gills, corrugations, or the like on their outer surfaces, e.g. in vertical arrangement
F22D1/08 (The tubes having fins, ribs, gills, corrugations, or the like on their) appears on 8 US grants and 8 published applications in this corpus.
Search patents in F22D- Granted patents
- 8
- Published applications
- 8
- Assignees
- 10
- Inventors
- 30
- Latest grant
- 5 Feb 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 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 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Boiler system comprising an integrated economizer5 Feb 2019US 10,197,266 B2Thermodesign, Inc.
- Heat exchanger unit11 Dec 2018US 10,151,537 B2Doosan Heavy Industries Construction Co., Ltd
- Recovery system of waste heat from flue gas25 Oct 2016US 9,476,583 B2Shanghai Fubo Ep Equipment Co., Ltd.
- Economizer arrangement for steam generator15 Dec 2015US 9,212,816 B2The Babcock & Wilcox Company
- Economizer arrangement for steam generator28 Jan 2014US 8,635,976 B2Babcock & Wilcox Power Generation Group, Inc.
- Gas-fired steam-injection boiler for oil field24 Oct 2024US 2024/0353095 A1China Petroleum & Chemical Corporation
- Heat exchanger unit6 Oct 2016US 2016/0290729 A1Doosan Heavy Industries Construction Co., Ltd
- Condensate preheater for waste heat steam generator28 Jan 2016US 2016/0025331 A1Siemens Aktiengesellschaft
- Boiler System Comprising an Integrated Economizer17 Dec 2015US 2015/0362176 A1Thermodesign, Inc.
- Recovery system of waste heat from flue gas23 Apr 2015US 2015/0107537 A1Shanghai Fubo Ep Equipment Co., Ltd.
Most cited
By later US patents
- Heat exchanger and economizer8US 4,138,969 AApplied Engineering Co. · 1979
- Tube and plate heat exchanger5US 4,120,267 A1978
- Latent heat recovery-type water heater3US 8,210,132 B2Noritz Corporation · 2012
- Boiler system comprising an integrated economizer2US 10,197,266 B2Thermodesign, Inc. · 2019
- Economizer arrangement for steam generator2US 8,635,976 B2Babcock & Wilcox Power Generation Group, Inc. · 2014