F04C 11/008
Enclosed motor pump units
Official title: {Enclosed motor pump units}
F04C11/008 (Enclosed motor pump units) appears on 284 US grants and 306 published applications in this corpus.
Search patents in F04C- Granted patents
- 284
- Published applications
- 306
- Assignees
- 188
- Inventors
- 678
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 2 |
| 2003 | 2 | 11 |
| 2004 | 5 | 6 |
| 2005 | 8 | 5 |
| 2006 | 3 | 7 |
| 2007 | 3 | 1 |
| 2008 | 4 | 5 |
| 2009 | 2 | 2 |
| 2010 | 2 | 7 |
| 2011 | 5 | 6 |
| 2012 | 3 | 15 |
| 2013 | 2 | 15 |
| 2014 | 10 | 14 |
| 2015 | 9 | 16 |
| 2016 | 6 | 14 |
| 2017 | 10 | 13 |
| 2018 | 14 | 15 |
| 2019 | 11 | 25 |
| 2020 | 16 | 23 |
| 2021 | 20 | 19 |
| 2022 | 17 | 20 |
| 2023 | 13 | 14 |
| 2024 | 18 | 20 |
| 2025 | 24 | 19 |
| 2026 | 12 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual oil pump with centrifugal shifter6 Oct 2026US 12,753,804 B1Schaeffler Technologies AG & Co. KG
- Operable implant11 Aug 2026US 12,702,752 B2
- Automotive electric oil pump21 Jul 2026US 12,687,166 B2Pierburg Pump Technology GmbH
- Pump assembly7 Jul 2026US 12,674,453 B2Sumitomo Electric Sintered Alloy, Ltd.
- Electric and hydraulic machine30 Jun 2026US 12,669,120 B2Bosch Rexroth AG
- Electric oil pump, housing body portion, and pump cover1 Oct 2026US 2026/0298227 A1Nidec Powertrain Systems Corporation
- Motor and pump comprising same13 Aug 2026US 2026/0238067 A1LG Innotek Co., Ltd.
- Pump assembly2 Jul 2026US 2026/0185523 A1Sumitomo Electric Sintered Alloy, Ltd.
- Internal gear pump25 Jun 2026US 2026/0177055 A1Sumitomo Electric Sintered Alloy, Ltd.
- Electric pump system and method with hollow shaft and temperature sensor18 Jun 2026US 2026/0168491 A1Tesla, Inc.
Most cited
By later US patents
- Overheat protection for fluid pump89US 6,837,688 B2Standex International Corporation · 2005
- Brushless coolant pump and cooling system73US 6,447,270 B1Isothermal Systems Research, Inc. · 2002
- Magnet assembly for electric fuel pump60US 5,391,063 AGeneral Motors Corporation · 1995
- Electric motor driven inline hydraulic apparatus56US 5,181,837 AVickers, Incorporated · 1993
- Hydraulic pump driven by an electric motor56US 5,360,322 AAlfred Teves GmbH · 1994