F04D 29/30
Vanes
F04D29/30 (Vanes) appears on 800 US grants and 1,008 published applications in this corpus.
Search patents in F04D- Granted patents
- 800
- Published applications
- 1,008
- Assignees
- 427
- Inventors
- 1,890
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 3 |
| 2002 | 14 | 10 |
| 2003 | 12 | 17 |
| 2004 | 14 | 12 |
| 2005 | 6 | 24 |
| 2006 | 17 | 22 |
| 2007 | 12 | 26 |
| 2008 | 9 | 19 |
| 2009 | 10 | 36 |
| 2010 | 12 | 21 |
| 2011 | 13 | 20 |
| 2012 | 23 | 38 |
| 2013 | 10 | 33 |
| 2014 | 15 | 42 |
| 2015 | 27 | 59 |
| 2016 | 29 | 46 |
| 2017 | 34 | 62 |
| 2018 | 49 | 65 |
| 2019 | 58 | 63 |
| 2020 | 57 | 72 |
| 2021 | 61 | 57 |
| 2022 | 64 | 51 |
| 2023 | 45 | 61 |
| 2024 | 59 | 61 |
| 2025 | 54 | 37 |
| 2026 | 23 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Impeller and centrifugal compressor6 Oct 2026US 12,753,772 B2Mitsubishi Heavy Industries Compressor Corporation
- Aircraft gas turbine engine impeller with a trailing edge that is non-linear or angled or irregularly-shaped25 Aug 2026US 12,716,424 B2Pratt & Whitney Canada Corp.
- Impeller18 Aug 2026US 12,710,052 B2Delta Electronics, Inc.
- Patient ventilation device including blower with divided air outlet channels30 Jun 2026US 12,671,009 B2ResMed Pty Ltd
- Centrifugal fan or compressor composite impeller with abrasion resistance16 Jun 2026US 12,655,851 B2Howden Turbo GmbH
- Impeller with converging inducer8 Oct 2026US 2026/0309161 A1Pratt & Whitney Canada Corp.
- Multi-blade centrifugal air-sending device1 Oct 2026US 2026/0298258 A1Mitsubishi Electric Corporation
- Impeller17 Sep 2026US 2026/0276000 A1Honeywell International Inc.
- Serrated impeller blades3 Sep 2026US 2026/0258812 A1Danfoss A/S
- Fan Impeller Mid-Segment, Cross-Flow Fan Impeller and Air Conditioner27 Aug 2026US 2026/0251160 A1Gree Electric Appliances, Inc. of Zhuhai
Most cited
By later US patents
- Robotic vacuum cleaner206US 7,079,923 B2F Robotics Acquisitions Ltd. · 2006
- Robotic vacuum cleaner195US 7,167,775 B2F Robotics Acquisitions Ltd. · 2007
- Blower impeller apparatus with pivotable blades187US 6,547,519 B2Hewlett-Packard Development Company, L. P. · 2003
- Robotic vacuum cleaner174US 7,444,206 B2F Robotics Acquisitions Ltd. · 2008
- Centrifugal turbine for breathing-aid devices162US 6,960,854 B2Mallinckrodt Developpement France · 2005