F04D 13/02
Units comprising pumps and their driving means
F04D13/02 (Units comprising pumps and their driving means) appears on 4,471 US grants and 4,772 published applications in this corpus.
Search patents in F04D- Granted patents
- 4,471
- Published applications
- 4,772
- Assignees
- 1,735
- Inventors
- 7,784
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 39 | 0 |
| 1977 | 30 | 0 |
| 1978 | 18 | 0 |
| 1979 | 17 | 0 |
| 1980 | 24 | 0 |
| 1981 | 22 | 0 |
| 1982 | 12 | 0 |
| 1983 | 23 | 0 |
| 1984 | 18 | 0 |
| 1985 | 19 | 0 |
| 1986 | 18 | 0 |
| 1987 | 28 | 0 |
| 1988 | 24 | 0 |
| 1989 | 39 | 0 |
| 1990 | 29 | 0 |
| 1991 | 47 | 0 |
| 1992 | 54 | 0 |
| 1993 | 44 | 0 |
| 1994 | 50 | 0 |
| 1995 | 41 | 0 |
| 1996 | 39 | 0 |
| 1997 | 47 | 0 |
| 1998 | 40 | 0 |
| 1999 | 44 | 0 |
| 2000 | 68 | 0 |
| 2001 | 85 | 20 |
| 2002 | 57 | 52 |
| 2003 | 65 | 63 |
| 2004 | 50 | 76 |
| 2005 | 40 | 93 |
| 2006 | 45 | 89 |
| 2007 | 40 | 111 |
| 2008 | 38 | 91 |
| 2009 | 48 | 97 |
| 2010 | 65 | 104 |
| 2011 | 60 | 130 |
| 2012 | 71 | 127 |
| 2013 | 104 | 203 |
| 2014 | 114 | 240 |
| 2015 | 125 | 267 |
| 2016 | 139 | 279 |
| 2017 | 202 | 315 |
| 2018 | 194 | 250 |
| 2019 | 310 | 282 |
| 2020 | 280 | 297 |
| 2021 | 239 | 347 |
| 2022 | 271 | 279 |
| 2023 | 271 | 270 |
| 2024 | 271 | 270 |
| 2025 | 292 | 233 |
| 2026 | 161 | 187 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vertical turbine pump and method for producing an elbow housing and/or a lantern housing of a vertical turbine pump6 Oct 2026US 12,753,766 B2Wilo SE
- Pump device and method for carrying out a service in a pump device6 Oct 2026US 12,753,767 B2Herborner Pumpentechnik Gmbh & Co KG
- Tooling for encapsulated ESP stators6 Oct 2026US 12,756,256 B2Schlumberger Technology Corporation
- Stator assembly for electric submersible pump29 Sep 2026US 12,747,740 B2National Oilwell Varco, L. P.
- Water well submersible pump filter29 Sep 2026US 12,747,741 B2FES Labs, LLC
- Evaporator for ambient water bodies, and related system and method8 Oct 2026US 2026/0306964 A1Resource West, Inc.
- Gas separator for electrical submersible pump8 Oct 2026US 2026/0309018 A1Halliburton Energy Services.Inc.
- Systems and methods of prediction and management of scaling on components8 Oct 2026US 2026/0309156 A1Schlumberger Technology Corporation
- Variable speed pumping system and method8 Oct 2026US 2026/0309157 A1Pentair Water Pool and Spa, Inc.
- Engine system1 Oct 2026US 2026/0298145 A1ROLLS-ROYCE plc
Most cited
By later US patents
- Surgical irrigation apparatus and methods for use502US 6,162,194 AApollo Camera, LLC · 2000
- Cardiac assist pump with steady rate supply of fluid lubricant443US 4,927,407 ARegents of the University of Minnesota · 1990
- Rotary blood pump405US 6,234,772 B1Kriton Medical, Inc. · 2001
- Method for providing a jewel bearing for supporting a pump rotor shaft388US 6,254,359 B1The United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 2001
- Axial flow blood pump with hydrodynamically suspended rotor386US 5,211,546 ANu-Tech Industries, Inc. · 1993