F22B 35/02
Control systems for steam boilers: for steam boilers with natural convection circulation
Official title: for steam boilers with natural convection circulation
F22B35/02 (Control systems for steam boilers: for steam boilers with natural convection circulation) appears on 16 US grants and 16 published applications in this corpus.
Search patents in F22B- Granted patents
- 16
- Published applications
- 16
- Assignees
- 12
- Inventors
- 48
- Latest grant
- 24 Dec 2024
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 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 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 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 0 | 0 |
| 2016 | 2 | 2 |
| 2017 | 0 | 3 |
| 2018 | 2 | 0 |
| 2019 | 2 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 2 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- System for readying sub-critical and super-critical steam generator, servicing method of said sub-critical and super-critical steam generator and method of operation of sub-critical and super-critical steam generator24 Dec 2024US 12,173,627 B2General Electric Technology GmbH
- System to achieve full combustion turbine load in HRSG limited combined cycle plants6 Feb 2024US 11,892,160 B1HRST, Inc.
- Natural circulation multi-circulation package boiler for steam assisted gravity drainage (SAGD) process27 Jun 2023US 11,686,470 B2The Babcock & Wilcox Company
- System and method for improving startup time in a fossil-fueled power generation system28 Jun 2022US 11,371,392 B1General Electric Company
- Steam dump device for a nuclear power plant19 Nov 2019US 10,480,779 B2General Electric Technology GmbH
- System for readying sub-critical and super-critical steam generator, servicing method of said sub-critical and super-critical steam generator and method of operation of sub-critical and super-critical steam generator11 Jul 2024US 2024/0229683 A9General Electric Technology GmbH
- System for readying sub-critical and super-critical steam generator, servicing method of said sub-critical and super-critical steam generator and method of operation of sub-critical and super-critical steam generator25 Apr 2024US 2024/0133319 A1General Electric Technology GmbH
- System and method for improving startup time in a fossil-fueled power generation system7 Jul 2022US 2022/0213815 A1General Electric Company
- Natural circulation multi-circulation package boiler for steam assisted gravity drainage (sagd) process13 Aug 2020US 2020/0256556 A1The Babcock & Wilcox Company
- High temperature sub-critical boiler with steam cooled upper furnace5 Oct 2017US 2017/0284657 A1The Babcock & Wilcox Company
Most cited
By later US patents
- Steam generator with hybrid circulation43US 7,243,618 B22007
- Apparatus for controlling drum water level of drum type boiler22US 4,619,224 AHitachi, Ltd. · 1986
- Boiler control system11US 4,278,052 ALeeds & Northrup Company · 1981
- Steam generator9US 5,056,468 ASiemens Aktiengesellschaft · 1991
- Safety device for subcritical pressure steam boilers5US 4,802,446 A1989