F01M 2001/123
Using two or more pumps
Official title: {using two or more pumps}
F01M2001/123 (Using two or more pumps) appears on 199 US grants and 199 published applications in this corpus.
Search patents in F01M- Granted patents
- 199
- Published applications
- 199
- Assignees
- 114
- Inventors
- 470
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 4 | 6 |
| 2003 | 7 | 8 |
| 2004 | 7 | 16 |
| 2005 | 10 | 6 |
| 2006 | 11 | 6 |
| 2007 | 6 | 6 |
| 2008 | 4 | 1 |
| 2009 | 1 | 5 |
| 2010 | 2 | 6 |
| 2011 | 1 | 5 |
| 2012 | 6 | 9 |
| 2013 | 5 | 9 |
| 2014 | 8 | 7 |
| 2015 | 5 | 6 |
| 2016 | 6 | 14 |
| 2017 | 5 | 11 |
| 2018 | 12 | 10 |
| 2019 | 11 | 10 |
| 2020 | 7 | 13 |
| 2021 | 14 | 9 |
| 2022 | 10 | 10 |
| 2023 | 8 | 8 |
| 2024 | 7 | 7 |
| 2025 | 10 | 6 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of operating a lubrication system for a turbine engine14 Jul 2026US 12,680,474 B2General Electric Company
- Hydraulic system with a high sump and a dry sump6 Jan 2026US 12,516,726 B2Schaeffler Technologies AG & Co. KG
- Electric dual fluid pump having a single motor23 Dec 2025US 12,504,011 B2GHSP, Inc.
- Pressurized oil system powered by two-stroke engine11 Nov 2025US 12,467,391 B2Arctic Cat Inc.
- Small air-cooled engine assembly with dry sump lubrication system16 Sep 2025US 12,416,252 B2Briggs & Stratton Corporation
- Systems and methods of lubrication of engines24 Sep 2026US 2026/0286869 A1Cummins Power Generation Inc.
- Scavenge pump assembly for an aircraft engine oil system30 Apr 2026US 2026/0117683 A1Pratt & Whitney Canada Corp.
- Scavenge pump assembly for an aircraft engine oil system2 Apr 2026US 2026/0092538 A1Pratt & Whitney Canada Corp.
- Series hybrid car and corresponding control method19 Mar 2026US 2026/0077645 A1
- Pressurized oil system powered by two-stroke engine12 Feb 2026US 2026/0043341 A1Arctic Cat Inc.
Most cited
By later US patents
- Engine having a high pressure hydraulic system and low pressure lubricating system131US 6,067,962 ACaterpillar Inc. · 2000
- Use of traction inverter for supplying power for non-traction applications67US 6,023,137 AGeneral Electric Company · 2000
- Windmill and zero gravity lubrication system for a gas turbine engine65US 8,230,974 B2United Technologies Corporation · 2012
- Oil control unit for high-performance vehicles47US 5,568,842 A1996
- Internal combustion engine with dry sump lubricating system45US 6,029,638 AHonda Giken Kogyo Kabushiki Kaisha · 2000