F01K 21/042
Pure steam being expanded in a motor somewhere in the plant
Official title: {pure steam being expanded in a motor somewhere in the plant (F01K21/045 takes precedence)}
F01K21/042 (Pure steam being expanded in a motor somewhere in the plant) appears on 23 US grants and 10 published applications in this corpus.
Search patents in F01K- Granted patents
- 23
- Published applications
- 10
- Assignees
- 16
- Inventors
- 36
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Modified Rankine cycle without heat rejection, driven by a wet-vapor-region thermocompressor2 Sep 2025US 12,404,784 B2
- Re-circulating heat pump turbine18 Oct 2022US 11,473,442 B1Aetherdynamic Power Systems LLC
- Integrated air separation and oxygen fired power generation system23 Oct 2007US 7,284,362 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude
- Method for the separation of residual gases and working fluid in a combined cycle water/steam process21 Aug 2007US 7,258,724 B2Rerum Cognitio Gesellschaft fuer Marktintegration Deutscher Innovationen und Forschungsprodukte mbH
- Method for operating a power plant by means of a CO2 process15 Aug 2006US 7,089,743 B2Alstom
- Modified rankine cycle without heat rejection, driven by a wet-vapor-region thermocompressor13 Jun 2024US 2024/0191640 A1
- Method for increasing the power of a combined-cycle power plant, and combined-cycle power plant for conducting said method24 Dec 2015US 2015/0369125 A1
- Integrated Air Separation and Oxygen Fired Power Generation System14 Feb 2008US 2008/0034758 A1Societe Anonyme A Directoire et Conseil De Surveilance Pour L' Etude Et L'Exploitation Des
- Turbo set with starting device19 Oct 2006US 2006/0232071 A1
- Method for the separation of residual gases and working fluid in a combined cycle water/steam process8 Jun 2006US 2006/0117735 A1Rerum Cognitio Gesellschaft Fur Marktintegration Deutscher Innovationen Und Forschungsprodukte Mbh
Most cited
By later US patents
- Method for operating a power plant by means of a CO2 process135US 7,089,743 B2Alstom · 2006
- Integrated air separation and oxygen fired power generation system127US 7,284,362 B2L 'Air Liquide-Societe 'Anonyme a 'Directoire et Conseil de Surveillance pour l 'Etude et L'Exploitation des Procedes Georges Claude · 2007
- Dual cycle turbine engine having increased efficiency and heat recovery system for use therein65US 5,896,740 A1999
- Optimized power generation system comprising an oxygen-fired combustor integrated with an air separation unit55US 6,871,502 B2America Air Liquide, Inc. · 2005
- Gas turbine power plant51US 4,492,085 AGeneral Electric Company · 1985