F02G 2243/50
Having resonance tubes
Official title: having resonance tubes
F02G2243/50 (Having resonance tubes) appears on 194 US grants and 109 published applications in this corpus.
Search patents in F02G- Granted patents
- 194
- Published applications
- 109
- Assignees
- 89
- Inventors
- 241
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 3 |
| 2002 | 13 | 9 |
| 2003 | 20 | 14 |
| 2004 | 11 | 11 |
| 2005 | 5 | 6 |
| 2006 | 10 | 5 |
| 2007 | 6 | 2 |
| 2008 | 6 | 7 |
| 2009 | 1 | 2 |
| 2010 | 0 | 2 |
| 2011 | 4 | 10 |
| 2012 | 2 | 3 |
| 2013 | 5 | 4 |
| 2014 | 3 | 1 |
| 2015 | 6 | 1 |
| 2016 | 1 | 6 |
| 2017 | 6 | 2 |
| 2018 | 3 | 1 |
| 2019 | 4 | 7 |
| 2020 | 6 | 3 |
| 2021 | 3 | 2 |
| 2022 | 3 | 3 |
| 2023 | 1 | 2 |
| 2024 | 5 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat-assisted pumping systems for use in negative pressure wound therapy7 Jan 2025US 12,186,166 B2Smith & Nephew, Inc.
- Electric propulsion system of an aircraft29 Oct 2024US 12,129,039 B2Airbus SAS
- Combined Brayton and Stirling cycle power generator17 Sep 2024US 12,092,054 B1United States Government Administrator of NASA
- Modular thermoacoustic energy converter13 Aug 2024US 12,061,049 B2Etalim Inc.
- Thermoacoustic device4 Jun 2024US 12,000,641 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Enhancement of the thermoacoustic effect8 Jan 2026US 2026/0009596 A1Technion Research & Development Foundation Limited
- Acoustic power modulation in a thermoacoustic machine6 Mar 2025US 2025/0075948 A1Equium Groupe
- Thermoacoustic device15 Aug 2024US 2024/0271836 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Modular thermoacoustic energy converter16 Nov 2023US 2023/0366635 A1Etalim Inc.
- Thermoacoustic device4 May 2023US 2023/0133558 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
Most cited
By later US patents
- Electroactive polymer devices1,577US 6,545,384 B1SRI International · 2003
- Electroactive polymer electrodes1,515US 6,583,533 B2SRI International · 2003
- Electroactive polymer electrodes248US 6,376,971 B1SRI International · 2002
- Electroactive polymers213US 6,812,624 B1SRI International · 2004
- Biologically powered electroactive polymer generators212US 6,768,246 B2SRI International · 2004