F04D 17/165
Axial entry and discharge
Official title: {Axial entry and discharge}
F04D17/165 (Axial entry and discharge) appears on 103 US grants and 120 published applications in this corpus.
Search patents in F04D- Granted patents
- 103
- Published applications
- 120
- Assignees
- 69
- Inventors
- 244
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 3 |
| 2003 | 3 | 4 |
| 2004 | 3 | 4 |
| 2005 | 1 | 2 |
| 2006 | 3 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 2 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 3 | 4 |
| 2015 | 0 | 5 |
| 2016 | 2 | 3 |
| 2017 | 4 | 7 |
| 2018 | 3 | 12 |
| 2019 | 3 | 16 |
| 2020 | 11 | 5 |
| 2021 | 7 | 8 |
| 2022 | 6 | 14 |
| 2023 | 7 | 6 |
| 2024 | 9 | 10 |
| 2025 | 10 | 5 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Compact low noise efficient blower for CPAP devices351US 7,866,944 B2ResMed Motor Technologies Inc. · 2011
- Compact fan and impeller119US 5,188,508 AComair Rotron, Inc. · 1993
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