F02B 39/14
Lubrication of pumps
Official title: Lubrication of pumps; Safety measures therefor
F02B39/14 (Lubrication of pumps) appears on 330 US grants and 313 published applications in this corpus.
Search patents in F02B- Granted patents
- 330
- Published applications
- 313
- Assignees
- 126
- Inventors
- 657
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 7 |
| 2002 | 4 | 6 |
| 2003 | 10 | 5 |
| 2004 | 4 | 5 |
| 2005 | 5 | 3 |
| 2006 | 6 | 6 |
| 2007 | 1 | 7 |
| 2008 | 5 | 10 |
| 2009 | 4 | 11 |
| 2010 | 4 | 12 |
| 2011 | 8 | 6 |
| 2012 | 9 | 11 |
| 2013 | 6 | 12 |
| 2014 | 9 | 17 |
| 2015 | 16 | 26 |
| 2016 | 11 | 20 |
| 2017 | 15 | 24 |
| 2018 | 23 | 37 |
| 2019 | 33 | 21 |
| 2020 | 29 | 13 |
| 2021 | 15 | 16 |
| 2022 | 16 | 13 |
| 2023 | 13 | 16 |
| 2024 | 11 | 5 |
| 2025 | 7 | 2 |
| 2026 | 5 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Supercharger22 Sep 2026US 12,742,412 B2Eaton Intelligent Power Limited
- Bearing device and rotating machine26 May 2026US 12,638,045 B2Mitsubishi Heavy Industries Marine Machinery & Equipment Co., Ltd.
- Lubricating oil composition, diesel engine with mounted supercharger, and use method for lubricating oil composition10 Mar 2026US 12,570,921 B2Idemitsu Kosan Co., Ltd.
- Electric compressor27 Jan 2026US 12,535,077 B2
- Gas bearing device and turbocharger13 Jan 2026US 12,523,251 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Electric motor system life evaluation6 Aug 2026US 2026/0227283 A1IHI Corporation
- Oil deflector and turbocharger5 Mar 2026US 2026/0063064 A1IHI Corporation
- Bearing structure and turbocharger6 Nov 2025US 2025/0341218 A1IHI Corporation
- Supercharger31 Jul 2025US 2025/0243800 A1Kabushiki Kaisha Toyota Jidoshokki
- Supercharger assembly1 Aug 2024US 2024/0254895 A1Brp-Rotax GmbH & Co. KG
Most cited
By later US patents
- Very high speed radial inflow hydraulic turbine109US 5,471,965 A1995
- Turbocharging system with integral assisting electric motor and cooling system therefor107US 5,605,045 ATurbodyne Systems, Inc. · 1997
- Turbocharger and EGR system78US 6,263,672 B1BorgWarner Inc. · 2001
- Motor-assisted turbochargers for internal combustion engines58US 6,032,466 ATurbodyne Systems, Inc. · 2000
- Internal combustion engine with afterburning and catalytic reaction in a supercharger turbine casing52US 4,122,673 A1978