F04D 13/086
The pump and drive motor are both submerged
Official title: {the pump and drive motor are both submerged}
F04D13/086 (The pump and drive motor are both submerged) appears on 548 US grants and 602 published applications in this corpus.
Search patents in F04D- Granted patents
- 548
- Published applications
- 602
- Assignees
- 250
- Inventors
- 1,064
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 2 |
| 2003 | 5 | 4 |
| 2004 | 2 | 1 |
| 2005 | 1 | 4 |
| 2006 | 1 | 0 |
| 2007 | 1 | 8 |
| 2008 | 3 | 6 |
| 2009 | 2 | 5 |
| 2010 | 1 | 13 |
| 2011 | 4 | 9 |
| 2012 | 4 | 7 |
| 2013 | 8 | 20 |
| 2014 | 9 | 17 |
| 2015 | 10 | 42 |
| 2016 | 17 | 29 |
| 2017 | 26 | 44 |
| 2018 | 29 | 45 |
| 2019 | 51 | 47 |
| 2020 | 42 | 50 |
| 2021 | 40 | 48 |
| 2022 | 43 | 46 |
| 2023 | 47 | 46 |
| 2024 | 54 | 49 |
| 2025 | 51 | 34 |
| 2026 | 25 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water well submersible pump filter29 Sep 2026US 12,747,741 B2FES Labs, LLC
- Integrating domain knowledge with machine learning to optimize electrical submersible pump performance22 Sep 2026US 12,742,379 B2Schlumberger Technology Corporation
- Motor power optimization for downhole motors22 Sep 2026US 12,742,450 B2Schlumberger Technology Corporation
- Stick pump assembly1 Sep 2026US 12,723,590 B2Milwaukee Electric Tool Corporation
- Sacrificial anode assembly for a seal section of an electric submersible pump (ESP) assembly1 Sep 2026US 12,723,593 B2Halliburton Energy Services.Inc.
- Scale control for protecting electric submersible pump1 Oct 2026US 2026/0298246 A1Saudi Arabian Oil Company
- Submersible pump with stage erosion control17 Sep 2026US 2026/0275989 A1Schlumberger Technology Corporation
- Rod-shaped Water Pump10 Sep 2026US 2026/0266294 A1
- Portable pump with telescopic tubes6 Aug 2026US 2026/0226902 A1Techtronic Cordless GP
- Control device and pump apparatus30 Jul 2026US 2026/0218711 A1
Most cited
By later US patents
- Bilge pump104US 5,833,437 AShurflo Pump Manufacturing Co. · 1998
- Automatic liquid collection and disposal assembly91US 7,264,449 B1Little Giant Pump Company · 2007
- Synchronous electric motor, particularly for submersible pumps, and pump including the motor70US 5,767,606 AHydor Srl · 1998
- Enclosed pump motor and wiring thereof51US 4,961,018 AWayne/Scott Fetzer Company · 1990
- Submersible motor with shaft seals49US 6,379,127 B1Lawrence Pumps, Inc. · 2002