F02G 2256/04
Cooler tubes
F02G2256/04 (Cooler tubes) appears on 21 US grants and 18 published applications in this corpus.
Search patents in F02G- Granted patents
- 21
- Published applications
- 18
- Assignees
- 12
- Inventors
- 49
- Latest grant
- 18 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 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 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 2 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 6 | 0 |
| 2018 | 3 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- System and apparatus for energy conversion18 Feb 2025US 12,228,094 B2Hyliion Holdings Corp.
- Stirling engine comprising a cooling tube on a working cylinder12 Oct 2021US 11,143,140 B2Maston AB
- System and apparatus for energy conversion28 Jul 2020US 10,724,470 B1General Electric Company
- Combined chamber wall and heat exchanger18 Sep 2018US 10,077,944 B2Hieta Technologies Limited
- Annular venturi burner for stirling engine11 Sep 2018US 10,072,607 B2New Power Concepts LLC
- System and apparatus for energy conversion7 Jul 2022US 2022/0213847 A1General Electric Company
- Stirling engine comprising a cooling tube on a working cylinder7 Jan 2021US 2021/0003094 A1Maston AB
- Stirling cycle machine27 Sep 2018US 2018/0274482 A1New Power Concepts LLC
- Thermal Energy Recovery System29 Dec 2016US 2016/0377025 A1New Power Concepts LLC
- Coolant Penetrating Cold-End Pressure Vessel28 Jan 2016US 2016/0025036 A1New Power Concepts LLC
Most cited
By later US patents
- Heat exchanger for a Stirling engine32US 4,662,176 AMitsubishi Denki Kabushiki Kaisha · 1987
- Magnetoelectric resonance engine26US 5,146,750 A1992
- Coolant penetrating cold-end pressure vessel21US 7,325,399 B2New Power Concepts LLC · 2008
- Stirling cycle engine20US 4,821,516 AAisin Seiki Kabushiki Kaisha · 1989
- Stirling engine with air working fluid13US 4,532,765 AMechanical Technology Incorporated · 1985