F04C 2240/40
Electric motor
F04C2240/40 (Electric motor) appears on 750 US grants and 968 published applications in this corpus.
Search patents in F04C- Granted patents
- 750
- Published applications
- 968
- Assignees
- 297
- Inventors
- 1,810
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 7 | 4 |
| 2002 | 8 | 6 |
| 2003 | 4 | 10 |
| 2004 | 5 | 7 |
| 2005 | 10 | 4 |
| 2006 | 3 | 5 |
| 2007 | 1 | 3 |
| 2008 | 2 | 9 |
| 2009 | 3 | 9 |
| 2010 | 3 | 12 |
| 2011 | 5 | 14 |
| 2012 | 8 | 24 |
| 2013 | 9 | 24 |
| 2014 | 17 | 24 |
| 2015 | 15 | 25 |
| 2016 | 18 | 38 |
| 2017 | 21 | 90 |
| 2018 | 40 | 85 |
| 2019 | 67 | 69 |
| 2020 | 57 | 102 |
| 2021 | 63 | 73 |
| 2022 | 68 | 82 |
| 2023 | 71 | 64 |
| 2024 | 70 | 62 |
| 2025 | 76 | 72 |
| 2026 | 54 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pump6 Oct 2026US 12,753,759 B2LG Innotek Co., Ltd.
- Scroll-type electric compressor6 Oct 2026US 12,753,761 B2Sanden Corporation
- Electric compressor with integrated vapor injection circuit29 Sep 2026US 12,747,729 B2Mahle International GmbH
- Vertical type compressor and laundry treating apparatus having the same22 Sep 2026US 12,742,456 B2LG Electronics Inc.
- Progressive cavity pump system having reverse mode8 Sep 2026US 12,729,682 B2Schlumberger Technology Corporation
- Motor and pump comprising same1 Oct 2026US 2026/0298226 A1LG Innotek Co., Ltd.
- Compressor and method of controlling compressor1 Oct 2026US 2026/0298239 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Motorized device comprising a member with eccentric movement1 Oct 2026US 2026/0298242 A1Sonceboz Motion Boncourt SA
- Assemblies for an Internal Gear Pump With Hydrostatic Support Features24 Sep 2026US 2026/0286959 A1Parker-Hannifin Corporation
- Compressor, method for manufacturing compressor, and method for evaluating coating material for compressor17 Sep 2026US 2026/0275985 A1Carrier Japan Corporation
Most cited
By later US patents
- Overheat protection for fluid pump89US 6,837,688 B2Standex International Corporation · 2005
- Motor cooling in a refrigeration system75US 6,032,472 ACarrier Corporation · 2000
- Oil free dry screw compressor including variable speed drive62US 6,474,950 B1Ingersoll-Rand Company · 2002
- Fluid rotating apparatus61US 5,197,861 AMatsushita Electric Industrial Co., Ltd. · 1993
- Displacement machine with electronic motor synchronization61US 5,767,635 ASihi GmbH & Co. KG · 1998