F04D 5/00
Pumps with circumferential or transverse flow
Official title: Pumps with circumferential or transverse flow {(control thereof F04D15/005)}
F04D5/00 (Pumps with circumferential or transverse flow) appears on 604 US grants and 475 published applications in this corpus.
Search patents in F04D- Granted patents
- 604
- Published applications
- 475
- Assignees
- 242
- Inventors
- 893
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 6 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 10 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 7 | 0 |
| 1991 | 11 | 0 |
| 1992 | 16 | 0 |
| 1993 | 16 | 0 |
| 1994 | 19 | 0 |
| 1995 | 20 | 0 |
| 1996 | 21 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 10 | 0 |
| 2000 | 24 | 0 |
| 2001 | 20 | 5 |
| 2002 | 23 | 12 |
| 2003 | 14 | 27 |
| 2004 | 16 | 26 |
| 2005 | 11 | 25 |
| 2006 | 13 | 22 |
| 2007 | 18 | 34 |
| 2008 | 4 | 18 |
| 2009 | 14 | 14 |
| 2010 | 12 | 17 |
| 2011 | 9 | 8 |
| 2012 | 14 | 16 |
| 2013 | 11 | 16 |
| 2014 | 5 | 20 |
| 2015 | 12 | 17 |
| 2016 | 12 | 26 |
| 2017 | 19 | 20 |
| 2018 | 13 | 28 |
| 2019 | 17 | 14 |
| 2020 | 23 | 18 |
| 2021 | 16 | 19 |
| 2022 | 16 | 26 |
| 2023 | 22 | 13 |
| 2024 | 17 | 11 |
| 2025 | 12 | 17 |
| 2026 | 7 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Side-channel machine (compressor, vacuum pump or blower) having an extraction duct in the stripper29 Sep 2026US 12,747,732 B2Gardner Denver Deutschland GmbH
- 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
- Configurable bi-directional airflow fan21 Apr 2026US 12,607,203 B2Cisco Technology, Inc.
- Low noise blower7 Apr 2026US 12,595,800 B1Hyundai Motor Company
- Fuel system23 Jul 2026US 2026/0210293 A1ROLLS-ROYCE plc
- Multistage disc pump for multiphase fluids25 Jun 2026US 2026/0177067 A1Mxq, LLC
- Disk-Pack Turbine11 Jun 2026US 2026/0160237 A1Qwtip LLC
- Liquid delivery device4 Jun 2026US 2026/0151766 A1Sumitomo Bakelite Co., Ltd.
- High viscocity pump and rotor for pumping liquids, materials and slurries26 Mar 2026US 2026/0085687 A1Eddy Pump Corporation
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