F01M 2013/0494
Using check valves
Official title: {using check valves}
F01M2013/0494 (Using check valves) appears on 36 US grants and 40 published applications in this corpus.
Search patents in F01M- Granted patents
- 36
- Published applications
- 40
- Assignees
- 36
- Inventors
- 107
- Latest grant
- 15 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 2 |
| 2002 | 3 | 2 |
| 2003 | 3 | 3 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 4 |
| 2010 | 0 | 2 |
| 2011 | 2 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 5 |
| 2015 | 2 | 0 |
| 2016 | 1 | 4 |
| 2017 | 2 | 3 |
| 2018 | 4 | 2 |
| 2019 | 2 | 2 |
| 2020 | 2 | 2 |
| 2021 | 3 | 0 |
| 2022 | 2 | 3 |
| 2023 | 2 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Aerosol separator for separating aerosols in a blow-by gas15 Oct 2024US 12,115,478 B2Deere & Company
- Oil return valve for a crankcase ventilation system12 Mar 2024US 11,927,119 B2Deutz Aktiengesellschaft
- Aerosol separator for separating aerosols in a blow-by gas8 Aug 2023US 11,717,779 B2Deere & Company
- Blow-by gas recirculation device25 Apr 2023US 11,635,006 B2Kubota Corporation
- Fluid separator for a displacement machine and a method for separating lubricant and working fluid in a displacement machine1 Nov 2022US 11,486,281 B2Heaten AS
- Ventilation system for forced-induction engine2 Oct 2025US 2025/0305430 A1Toyota Jidosha Kabushiki Kaisha
- Aerosol separator for separating aerosols in a blow-by gas14 Dec 2023US 2023/0398479 A1Deere & Company
- Oil return valve for a crankcase ventilation system15 Dec 2022US 2022/0397046 A1Deutz Aktiengesellschaft
- Blow-by gas recirculation device11 Aug 2022US 2022/0251986 A1Kubota Corporation
- Aerosol separator for separating aerosols in a blow-by gas20 Jan 2022US 2022/0016556 A1Deere & Company
Most cited
By later US patents
- Flat low profile diesel engine crankcase ventilation filter72US 6,478,019 B2Nelson Industries, Inc. · 2002
- Oil separator for internal combustion engine49US 4,602,595 AAisin Seiki Kabushiki Kaisha · 1986
- Device to deoil the crankcase ventilation gases of an internal combustion engine46US 6,505,615 B2Ing. Walter Hengst GmbH & Co. KG · 2003
- Combined crankcase and canister ventilation system25US 6,457,462 B2Volvo Personvagnar AB · 2002
- Thermal management system for positive crankcase ventilation system22US 6,412,479 B1Dana Corporation · 2002