F04D 29/185
Rotors consisting of a plurality of wheels
Official title: {Rotors consisting of a plurality of wheels}
F04D29/185 (Rotors consisting of a plurality of wheels) appears on 29 US grants and 32 published applications in this corpus.
Search patents in F04D- Granted patents
- 29
- Published applications
- 32
- Assignees
- 24
- Inventors
- 68
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 3 |
| 2016 | 0 | 1 |
| 2017 | 2 | 3 |
| 2018 | 2 | 3 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 2 |
| 2022 | 3 | 0 |
| 2023 | 0 | 2 |
| 2024 | 3 | 3 |
| 2025 | 4 | 3 |
| 2026 | 3 | 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
- High efficiency pump impeller85US 6,210,116 B12001
- Dual auger top loading pumping system for manure tank wagon20US 4,971,526 A1990
- Dual inlet volute, impeller and pump housing for same, and related methods9US 11,136,983 B2Wayne/Scott Fetzer Company · 2021
- Multistage pump for two-phase effluents6US 5,253,977 ATechnicatome Societe Technique pour l'Energie Atomique · 1993
- Centrifugal pump having a unitary one-piece diffusion casing and a unitary one piece turbine impeller unit5US 5,071,317 A1991