F01M 2001/1028
Characterised by the type of purification
Official title: {characterised by the type of purification}
F01M2001/1028 (Characterised by the type of purification) appears on 171 US grants and 103 published applications in this corpus.
Search patents in F01M- Granted patents
- 171
- Published applications
- 103
- Assignees
- 100
- Inventors
- 337
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 9 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 2 |
| 2002 | 12 | 5 |
| 2003 | 13 | 4 |
| 2004 | 1 | 7 |
| 2005 | 4 | 6 |
| 2006 | 3 | 3 |
| 2007 | 3 | 2 |
| 2008 | 3 | 4 |
| 2009 | 3 | 3 |
| 2010 | 3 | 1 |
| 2011 | 4 | 0 |
| 2012 | 0 | 3 |
| 2013 | 2 | 2 |
| 2014 | 1 | 2 |
| 2015 | 3 | 4 |
| 2016 | 2 | 4 |
| 2017 | 2 | 10 |
| 2018 | 3 | 6 |
| 2019 | 6 | 3 |
| 2020 | 5 | 6 |
| 2021 | 7 | 7 |
| 2022 | 5 | 3 |
| 2023 | 6 | 4 |
| 2024 | 3 | 4 |
| 2025 | 1 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Module for attracting and detecting debris1 Sep 2026US 12,723,526 B2Safran Aero Boosters SA
- Engine-oil dipstick having a magnet14 Jul 2026US 12,680,483 B2
- Hybrid filter element apparatus7 Jul 2026US 12,673,280 B2
- Internal combustion engine12 May 2026US 12,624,651 B2Innio Jenbacher GmbH & Co OG
- Multi-zone magnetic chip detector21 Jan 2025US 12,203,920 B2Pratt & Whitney Canada Corp.
- Mechanism for online continuous purification of hydraulic and/or lubricating oil using available system pressure24 Sep 2026US 2026/0286991 A1
- Magnetic debris filter for compressor and compressor with magnetic debris filter19 Mar 2026US 2026/0078757 A1Mahle International GmbH
- Lubricating oil purification system and lubricating oil purification method5 Mar 2026US 2026/0061339 A1Mitsubishi Kakoki Kaisha, Ltd.
- Lubrication maintenance systems and methods of changing lubrication in a turbine engine23 Oct 2025US 2025/0327413 A1General Electric Company
- Engine-Oil Dipstick Having a Magnet28 Aug 2025US 2025/0270945 A1Figurati Designs LLC
Most cited
By later US patents
- In-situ oil analyzer and methods of using same, particularly for continuous on-board analysis of diesel engine lubrication systems128US 5,604,441 ADetroit Diesel Corporation · 1997
- Centrifugal filter for removing soot from engine oil84US 6,517,475 B1Analytical Engineering, Inc. · 2003
- Oil filter I81US 4,997,556 AMitsubishi Oil Co., Ltd. · 1991
- Nozzle inlet enhancement for a high speed turbine-driven centrifuge64US 6,019,717 AFleetguard, Inc. · 2000
- Extended life combination filter63US 6,709,575 B1Nelson Industries, Inc. · 2004