F04D 29/186
Shaftless rotors
Official title: {Shaftless rotors (F04D13/024 takes precedence)}
F04D29/186 (Shaftless rotors) appears on 39 US grants and 37 published applications in this corpus.
Search patents in F04D- Granted patents
- 39
- Published applications
- 37
- Assignees
- 26
- Inventors
- 89
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 1 | 2 |
| 2018 | 3 | 0 |
| 2019 | 1 | 5 |
| 2020 | 2 | 4 |
| 2021 | 3 | 6 |
| 2022 | 1 | 1 |
| 2023 | 5 | 5 |
| 2024 | 2 | 1 |
| 2025 | 3 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Liquid supply device with function of reducing generation of particles25 Aug 2026US 12,716,416 B2Samsung Electronics Co., Ltd.
- Automotive electronic flow pump4 Aug 2026US 12,698,777 B2Pierburg Pump Technology GmbH
- Propeller21 Oct 2025US 12,448,098 B2Sharrow Engineering LLC
- Centrifugal blood pump with hydrodynamic bearing14 Jan 2025US 12,196,210 B2Abiomed Europe GmbH
- Centrifugal pump and a pump housing7 Jan 2025US 12,188,475 B2Levitronix LLC
- Liquid supply device with function of reducing generation of particles30 Apr 2026US 2026/0117779 A1Samsung Electronics Co., Ltd.
- Propeller15 Jan 2026US 2026/0015071 A1Sharrow Engineering LLC
- Pump unit for a centrifugal pump and a centrifugal pump30 Oct 2025US 2025/0334122 A1Levitronix LLC
- Centrifugal blood pump with hydrodynamic bearing12 Jun 2025US 2025/0188937 A1Abiomed Europe GmbH
- Automotive electronic flow pump3 Apr 2025US 2025/0109749 A1Pierburg Pump Technology GmbH
Most cited
By later US patents
- Integrated centrifugal pump and motor177US 5,158,440 AIngersoll-Rand Company · 1992
- Fluid pump with magnetically levitated impeller173US 5,195,877 A1993
- Fluid pump with magnetically levitated impeller167US 5,470,208 A1995
- Fluid pump with levitated impeller149US 5,055,005 A1991
- Sealless blood pump with means for avoiding thrombus formation84US 6,120,537 AKriton Medical, Inc. · 2000