F22B 29/00
Steam boilers of forced-flow type
F22B29/00 (Steam boilers of forced-flow type) appears on 257 US grants and 240 published applications in this corpus.
Search patents in F22B- Granted patents
- 257
- Published applications
- 240
- Assignees
- 107
- Inventors
- 410
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 1 | 3 |
| 2007 | 2 | 8 |
| 2008 | 2 | 2 |
| 2009 | 3 | 5 |
| 2010 | 0 | 6 |
| 2011 | 3 | 10 |
| 2012 | 6 | 13 |
| 2013 | 1 | 21 |
| 2014 | 9 | 19 |
| 2015 | 15 | 16 |
| 2016 | 11 | 21 |
| 2017 | 15 | 9 |
| 2018 | 18 | 7 |
| 2019 | 11 | 13 |
| 2020 | 9 | 5 |
| 2021 | 7 | 5 |
| 2022 | 9 | 18 |
| 2023 | 17 | 19 |
| 2024 | 24 | 16 |
| 2025 | 13 | 18 |
| 2026 | 15 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Thermal energy storage system coupled with a solid oxide electrolysis system6 Oct 2026US 12,753,710 B2Rondo Energy, Inc.
- Thermal energy storage system coupled with thermal power cycle systems8 Sep 2026US 12,729,632 B1Rondo Energy, Inc.
- Thermal energy storage systems for use in material processing1 Sep 2026US 12,723,524 B2Rondo Energy, Inc.
- Methods for material activation with thermal energy storage system18 Aug 2026US 12,709,998 B2Rondo Energy, Inc.
- System and method for superheated working fluid injection into a well2 Jun 2026US 12,644,366 B1Empire Petroleum Corporation
- Thermal Energy Storage with Fluid Flow Insulation16 Jul 2026US 2026/0201821 A1Rondo Energy, Inc.
- Thermal energy storage system coupled with steam cracking system25 Jun 2026US 2026/0176985 A1Rondo Energy, Inc.
- Energy storage system and alumina calcination applications18 Jun 2026US 2026/0168411 A1Rondo Energy, Inc.
- Thermal energy storage systems for use in material processing2 Apr 2026US 2026/0092542 A1Rondo Energy, Inc.
- Vapor engine and vapor introduction system19 Feb 2026US 2026/0049712 A1Sanfilippo Tech, LLC.
Most cited
By later US patents
- Water treatment and steam generation system for enhanced oil recovery and a method using same49US 10,357,726 B2Great Ocean Ltd. · 2019
- Steam generator with hybrid circulation43US 7,243,618 B22007
- Attemperator-deaerator condenser39US 4,391,101 AGeneral Electric Company · 1983
- Method for starting a continuous steam generator and continuous steam generator for carrying out said method34US 7,587,133 B2Siemens Aktiengesellschaft · 2009
- Flexible assembly of once-through evaporation for horizontal heat recovery steam generator26US 6,957,630 B1ALSTOM Technology Ltd · 2005