F04C 15/066
Of the non-return type
Official title: {of the non-return type}
F04C15/066 (Of the non-return type) appears on 57 US grants and 47 published applications in this corpus.
Search patents in F04C- Granted patents
- 57
- Published applications
- 47
- Assignees
- 52
- Inventors
- 118
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 0 | 0 |
| 2007 | 3 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 4 |
| 2014 | 2 | 4 |
| 2015 | 1 | 3 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 3 | 3 |
| 2019 | 1 | 1 |
| 2020 | 3 | 7 |
| 2021 | 5 | 5 |
| 2022 | 3 | 3 |
| 2023 | 5 | 0 |
| 2024 | 3 | 5 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pre-pressurized system with reverse rotation of pump for valve actuation16 Dec 2025US 12,497,957 B2Johnson Electric Motion Technology Canada Ltd.
- Electromotive oil pump comprising a non-return valve20 May 2025US 12,305,639 B2Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg
- Scroll compressor and refrigeration apparatus13 May 2025US 12,297,830 B2Daikin Industries, Ltd.
- Vapor injection structure for a compressor24 Sep 2024US 12,098,719 B2Hanon Systems
- Electric/hydraulic safety valve30 Jan 2024US 11,885,202 B2Halliburton Energy Services.Inc.
- Rotating screw machine with discharge plate30 Apr 2026US 2026/0117769 A1City St George's, University of London
- Rotary Pump19 Jun 2025US 2025/0198405 A1ECO Holding 1 GmbH
- Primer pump assembly and a method of cooling a marine vessel17 Oct 2024US 2024/0344519 A1AB Volvo Penta
- Vapor injection structure for a compressor22 Aug 2024US 2024/0280102 A1Hanon Systems
- Scroll compressor and refrigeration apparatus15 Aug 2024US 2024/0271620 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Vehicle drivetrain hydraulic coupling70US 5,310,388 AASHA Corporation · 1994
- Hydraulic coupling for vehicle drivetrain54US 5,595,214 AASHA Corporation · 1997
- Hydraulic coupling for vehicle drivetrain53US 5,536,215 AASHA Corporation · 1996
- Hydraulic coupling for vehicle drivetrain35US 5,735,764 AASHA Corporation · 1998
- Gear rotor fuel pump28US 4,596,519 AWalbro Corporation · 1986