F04D 29/086
Especially adapted for liquid pumps
Official title: {especially adapted for liquid pumps}
F04D29/086 (Especially adapted for liquid pumps) appears on 290 US grants and 316 published applications in this corpus.
Search patents in F04D- Granted patents
- 290
- Published applications
- 316
- Assignees
- 200
- Inventors
- 680
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 0 |
| 2003 | 0 | 3 |
| 2004 | 3 | 7 |
| 2005 | 3 | 9 |
| 2006 | 3 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 3 | 4 |
| 2011 | 0 | 3 |
| 2012 | 0 | 3 |
| 2013 | 4 | 8 |
| 2014 | 1 | 16 |
| 2015 | 8 | 28 |
| 2016 | 10 | 20 |
| 2017 | 16 | 28 |
| 2018 | 19 | 16 |
| 2019 | 26 | 24 |
| 2020 | 20 | 18 |
| 2021 | 24 | 29 |
| 2022 | 26 | 19 |
| 2023 | 23 | 18 |
| 2024 | 21 | 22 |
| 2025 | 21 | 14 |
| 2026 | 16 | 26 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pump diffuser anti-rotation and alignment assembly6 Oct 2026US 12,753,774 B2Pentair Flow Technologies, LLC
- Marine drives and cooling pumps for marine drives8 Sep 2026US 12,728,974 B1Brunswick Corporation
- Pump unit for a centrifugal pump and centrifugal pump25 Aug 2026US 12,716,422 B2Levitronix LLC
- Electric coolant pump with expansion compensating seal18 Aug 2026US 12,710,051 B2Multi Parts Supply USA, Inc.
- Particulate restriction for fluid pumps28 Jul 2026US 12,691,393 B2Baker Hughes Energy Technology UK Limited
- Melamine process with urea melt-based washing of melamine offgas1 Oct 2026US 2026/0297039 A1Casale SA
- Vertical turbine pump with roller bearing support1 Oct 2026US 2026/0298243 A1Unted Flo, LLC
- Pump unit1 Oct 2026US 2026/0298248 A1Ebara Corporation
- Pump system30 Jul 2026US 2026/0218719 A1Pentair Flow Technologies, LLC
- Quick disconnect system for use with downhole tools23 Jul 2026US 2026/0210191 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Shaft driven disposable centrifugal pump80US 4,898,518 AMinnesota Mining and Manufacturing Company · 1990
- Tube pump for transferring molten metal while preventing overflow48US 9,057,376 B22015
- Centrifugal pump having a housing and a volute casing wherein the volute casing has a tear-drop shaped inner wall defined by a circular body region and a converging apex with the inner wall comprising a blocker below at least one perimeter end of one diffuser blade34US 11,193,504 B1Aquastar Pool Products, Inc. · 2021
- Liquid pump sealing system24US 4,065,232 A1977
- Dishwasher tub bottom wall construction21US 5,299,586 AMaytag Corporation · 1994