F04D 29/2222
Construction and assembly
Official title: {Construction and assembly (F04D29/2211 takes precedence)}
F04D29/2222 (Construction and assembly) appears on 269 US grants and 282 published applications in this corpus.
Search patents in F04D- Granted patents
- 269
- Published applications
- 282
- Assignees
- 205
- Inventors
- 650
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 10 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 6 | 4 |
| 2003 | 7 | 7 |
| 2004 | 4 | 4 |
| 2005 | 4 | 5 |
| 2006 | 2 | 4 |
| 2007 | 2 | 6 |
| 2008 | 7 | 11 |
| 2009 | 5 | 5 |
| 2010 | 1 | 11 |
| 2011 | 4 | 8 |
| 2012 | 9 | 7 |
| 2013 | 10 | 14 |
| 2014 | 5 | 7 |
| 2015 | 7 | 21 |
| 2016 | 8 | 14 |
| 2017 | 9 | 16 |
| 2018 | 11 | 15 |
| 2019 | 18 | 25 |
| 2020 | 13 | 18 |
| 2021 | 16 | 15 |
| 2022 | 18 | 16 |
| 2023 | 13 | 10 |
| 2024 | 17 | 16 |
| 2025 | 12 | 16 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Composite cross-over diffuser for a centrifugal pump, centrifugal pump comprising the same and corresponding manufacturing process9 Jun 2026US 12,650,131 B2Waterax Inc.
- Efficient fan assembly7 Apr 2026US 12,595,806 B2Greenheck Fan Corporation
- Impeller having a toothing in the cover plate31 Mar 2026US 12,590,588 B2KSB SE & Co. KGaA
- High-speed pressurized impeller disk24 Mar 2026US 12,584,491 B1P3 Technologies, LLC
- Pump device17 Mar 2026US 12,577,956 B2Nidec Instruments Corporation
- High-speed pressurized impeller disk27 Aug 2026US 2026/0251150 A1P3 Technologies, LLC
- High-speed pressurized impeller disk27 Aug 2026US 2026/0251151 A1P3 Technologies, LLC
- Stage-by-stage hydraulic design method for impellers of multistage gasliquid multiphase pump20 Aug 2026US 2026/0244813 A1Jiangsu University
- Motor pump14 May 2026US 2026/0132798 A1Ebara Corporation
- Water Pump30 Apr 2026US 2026/0117775 A1Coavis
Most cited
By later US patents
- Sump pump monitoring and control system151US 6,676,382 B2Campbell Hausfeld/Scott Fetzer Company · 2004
- Chambered vane impeller molten metal pump121US 6,439,860 B12002
- Pump impeller109US 4,986,736 AEbara Corporation · 1991
- Pump with rotating inlet106US 7,402,276 B22008
- Pump with rotating inlet99US 8,110,141 B22012