F04D 29/162
Of a centrifugal flow wheel
Official title: {of a centrifugal flow wheel}
F04D29/162 (Of a centrifugal flow wheel) appears on 285 US grants and 340 published applications in this corpus.
Search patents in F04D- Granted patents
- 285
- Published applications
- 340
- Assignees
- 181
- Inventors
- 779
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 0 |
| 2002 | 6 | 7 |
| 2003 | 3 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 9 |
| 2006 | 2 | 9 |
| 2007 | 7 | 6 |
| 2008 | 5 | 4 |
| 2009 | 3 | 10 |
| 2010 | 3 | 5 |
| 2011 | 4 | 5 |
| 2012 | 5 | 12 |
| 2013 | 6 | 15 |
| 2014 | 5 | 18 |
| 2015 | 8 | 21 |
| 2016 | 9 | 20 |
| 2017 | 20 | 30 |
| 2018 | 19 | 31 |
| 2019 | 26 | 27 |
| 2020 | 20 | 25 |
| 2021 | 25 | 17 |
| 2022 | 17 | 18 |
| 2023 | 16 | 13 |
| 2024 | 12 | 11 |
| 2025 | 16 | 13 |
| 2026 | 6 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Fan motor23 Jul 2026US 2026/0210365 A1LG Electronics Inc.
- Anti-pressure-relief structure for fan23 Jul 2026US 2026/0210378 A1Asia Vital Components Co., Ltd.
- Centrifugal compressor with controlled tolerance stack and methods of assembling the same9 Jul 2026US 2026/0194072 A1Copeland Corporation
- Centrifugal air blower25 Jun 2026US 2026/0177060 A1Shinano Kenshi Co., Ltd.
- Vehicle blower unit25 Jun 2026US 2026/0177068 A1Hanon Systems
Most cited
By later US patents
- Blade clearance control for turbomachinery69US 6,273,671 B1Allison Advanced Development Company · 2001
- Swirl control labyrinth seal63US 5,190,440 ADresser-Rand Company · 1993
- Rotary fluid handling machine having reduced fluid leakage62US 4,472,107 AUnion Carbide Corporation · 1984
- Compressor flow path50US 9,848,745 B2Dyson Technology Limited · 2017
- Centrifugal multiblade blower49US 6,604,906 B2Calsonic Kansei Corporation · 2003