F04D 5/001
Shear force pumps
Official title: {Shear force pumps}
F04D5/001 (Shear force pumps) appears on 128 US grants and 113 published applications in this corpus.
Search patents in F04D- Granted patents
- 128
- Published applications
- 113
- Assignees
- 60
- Inventors
- 160
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 0 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 4 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 4 |
| 2007 | 0 | 4 |
| 2008 | 1 | 0 |
| 2009 | 2 | 2 |
| 2010 | 1 | 3 |
| 2011 | 0 | 2 |
| 2012 | 2 | 4 |
| 2013 | 2 | 1 |
| 2014 | 3 | 7 |
| 2015 | 2 | 7 |
| 2016 | 2 | 8 |
| 2017 | 7 | 7 |
| 2018 | 3 | 5 |
| 2019 | 5 | 3 |
| 2020 | 8 | 5 |
| 2021 | 6 | 8 |
| 2022 | 4 | 9 |
| 2023 | 6 | 6 |
| 2024 | 8 | 3 |
| 2025 | 6 | 12 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas separation device system using waveform disks15 Sep 2026US 12,734,477 B2
- Disk array for use in a system and a method for separating fluids9 Jun 2026US 12,649,124 B2Qwtip LLC
- Impeller pump apparatus for pumping shear sensitive fluids10 Mar 2026US 12,571,396 B2
- Double-suction split case multi-disc pump3 Feb 2026US 12,540,622 B1
- Waveform disks and a system using the waveform disks19 Aug 2025US 12,392,330 B2Qwtip LLC
- Multistage disc pump for multiphase fluids25 Jun 2026US 2026/0177067 A1Mxq, LLC
- Disk-Pack Turbine11 Jun 2026US 2026/0160237 A1Qwtip LLC
- High viscocity pump and rotor for pumping liquids, materials and slurries26 Mar 2026US 2026/0085687 A1Eddy Pump Corporation
- Tapered rotary disc pump19 Feb 2026US 2026/0049614 A1Discflo Corporation
- Impeller pump apparatus for pumping shear sensitive fluids4 Dec 2025US 2025/0369445 A1Mxq, LLC
Most cited
By later US patents
- Magnetically suspended and rotated impellor pump apparatus and method291US 4,688,998 A1987
- Rotary machine with an electromagnetic rotary drive208US 6,100,618 ALust Antriebstechnik GmbH · 2000
- Fluid pump with magnetically levitated impeller173US 5,195,877 A1993
- Fluid pump with magnetically levitated impeller167US 5,470,208 A1995
- Viscous drag impeller components incorporated into pumps, turbines and transmissions164US 6,375,412 B12002