F25B 2309/1403
Pulse-tube cycles with heat input into acoustic driver
F25B2309/1403 (Pulse-tube cycles with heat input into acoustic driver) appears on 50 US grants and 47 published applications in this corpus.
Search patents in F25B- Granted patents
- 50
- Published applications
- 47
- Assignees
- 46
- Inventors
- 116
- Latest grant
- 18 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 4 | 3 |
| 2004 | 2 | 4 |
| 2005 | 2 | 3 |
| 2006 | 6 | 4 |
| 2007 | 1 | 3 |
| 2008 | 2 | 4 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 3 |
| 2015 | 1 | 1 |
| 2016 | 1 | 4 |
| 2017 | 3 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 4 |
| 2020 | 6 | 1 |
| 2021 | 1 | 2 |
| 2022 | 3 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Traveling wave heat engine65US 4,114,380 A1978
- Acoustic cryocooler58US 4,953,366 AThe United States of America as represented by the United States Department of Energy · 1990
- Thermoacoustic resonator50US 6,385,972 B12002
- Traveling-wave device with mass flux suppression49US 6,032,464 AThe Regents of the University of California · 2000
- Resonant travelling wave heat engine46US 4,355,517 A1982