F04D 29/62
Of radial or helico-centrifugal pumps
Official title: of radial or helico-centrifugal pumps
F04D29/62 (Of radial or helico-centrifugal pumps) appears on 1,618 US grants and 1,787 published applications in this corpus.
Search patents in F04D- Granted patents
- 1,618
- Published applications
- 1,787
- Assignees
- 836
- Inventors
- 3,754
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 8 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 6 | 0 |
| 1984 | 4 | 0 |
| 1985 | 9 | 0 |
| 1986 | 3 | 0 |
| 1987 | 11 | 0 |
| 1988 | 14 | 0 |
| 1989 | 13 | 0 |
| 1990 | 13 | 0 |
| 1991 | 14 | 0 |
| 1992 | 12 | 0 |
| 1993 | 11 | 0 |
| 1994 | 9 | 0 |
| 1995 | 11 | 0 |
| 1996 | 8 | 0 |
| 1997 | 11 | 0 |
| 1998 | 18 | 0 |
| 1999 | 13 | 0 |
| 2000 | 18 | 0 |
| 2001 | 12 | 2 |
| 2002 | 19 | 10 |
| 2003 | 13 | 19 |
| 2004 | 17 | 21 |
| 2005 | 17 | 40 |
| 2006 | 19 | 35 |
| 2007 | 13 | 38 |
| 2008 | 14 | 34 |
| 2009 | 15 | 39 |
| 2010 | 21 | 49 |
| 2011 | 28 | 53 |
| 2012 | 36 | 38 |
| 2013 | 22 | 46 |
| 2014 | 43 | 78 |
| 2015 | 53 | 116 |
| 2016 | 42 | 118 |
| 2017 | 91 | 116 |
| 2018 | 88 | 117 |
| 2019 | 119 | 112 |
| 2020 | 113 | 122 |
| 2021 | 106 | 114 |
| 2022 | 117 | 103 |
| 2023 | 113 | 101 |
| 2024 | 104 | 106 |
| 2025 | 85 | 84 |
| 2026 | 62 | 76 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid hydrogen pump impellor assembly6 Oct 2026US 12,753,770 B2ROLLS-ROYCE plc
- Pump diffuser anti-rotation and alignment assembly6 Oct 2026US 12,753,774 B2Pentair Flow Technologies, LLC
- Integrated inflator/deflator air pump, mounting structure and inflatable product6 Oct 2026US 12,753,776 B2Jiangsu Guorun Electric Co., Ltd.
- Mounting device for a fan unit6 Oct 2026US 12,753,777 B2Spectronik Pte. Ltd.
- Stick pump assembly1 Sep 2026US 12,723,590 B2Milwaukee Electric Tool Corporation
- Holder for a fan, fan unit comprising a holder and a fan, and use8 Oct 2026US 2026/0309166 A1ebm-papst Mulfingen GmbH & Co. KGaA & Co. KG
- Submersible pump with stage erosion control17 Sep 2026US 2026/0275989 A1Schlumberger Technology Corporation
- Blowing apparatus27 Aug 2026US 2026/0251147 A1Dongguan Hang Che Bao Future Technology Co., Ltd.
- Fan Impeller Mid-Segment, Cross-Flow Fan Impeller and Air Conditioner27 Aug 2026US 2026/0251160 A1Gree Electric Appliances, Inc. of Zhuhai
- Side channel compressor having a seal assembly20 Aug 2026US 2026/0243268 A1
Most cited
By later US patents
- Blood pump with sterile motor housing265US 6,210,133 B1A-Med Systems, Inc. · 2001
- Blood pump with disposable rotor assembly246US 5,393,207 ANimbus, Inc. · 1995
- Blood pump drive system221US 5,147,186 ABio-Medicus, Inc. · 1992
- Blood pump with turbine drive197US 6,152,704 AA-Med Systems, Inc. · 2000
- Blood pump drive system194US 5,021,048 AMedtronic, Inc. · 1991