F01L 2800/17
Maintenance
Official title: Maintenance; Servicing
F01L2800/17 (Maintenance) appears on 27 US grants and 35 published applications in this corpus.
Search patents in F01L- Granted patents
- 27
- Published applications
- 35
- Assignees
- 33
- Inventors
- 86
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 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 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 3 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 4 |
| 2010 | 2 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 4 |
| 2014 | 1 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 2 | 3 |
| 2019 | 5 | 4 |
| 2020 | 3 | 4 |
| 2021 | 0 | 0 |
| 2022 | 2 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compliance spring mounting method and assembly26 May 2026US 12,637,965 B2Eaton Intelligent Power Limited
- Valvetrain testing using instrumented pushrod9 Sep 2025US 12,410,998 B2Textron Innovations Inc.
- Replacement tappet assembly and kit25 Jun 2024US 12,018,597 B21F Performance, Inc
- Method and system for identifying abnormal valve performance in an internal combustion engine31 Jan 2023US 11,566,569 B1Caterpillar Inc.
- Marine outboard motor with valve train having adjustable lash26 Apr 2022US 11,313,255 B2Cox Powertrain Limited
- Compliance spring mounting method and assembly6 Mar 2025US 2025/0075642 A1Eaton Intelligent Power Limited
- Valve Bridge for a Valve Train of an Internal Combustion Engine, in Particular of a Motor Vehicle, Valve Train for an Internal Combustion Engine, in Particular of a Motor Vehicle, and Internal Combustion Engine2 May 2024US 2024/0141809 A1Daimler Truck AG
- Replacement Tappet Assembly and Kit29 Feb 2024US 2024/0068384 A11F Performance, Inc
- Valvetrain testing using instrumented pushrod6 Jul 2023US 2023/0213325 A1Avco Corporation
- Valve opening and closing timing control device6 Jan 2022US 2022/0003132 A1Aisin Seiki Kabushiki Kaisha
Most cited
By later US patents
- Method and apparatus for measuring valve stem wear22US 5,077,909 APatten Industries, Inc. · 1992
- Variable valve train for an internal combustion engine6US 7,770,550 B2Mitsubishi Jidosha Kogyo Kabushiki Kaisha · 2010
- Engine5US 10,221,727 B1Indian Motorcycle International, LLC · 2019
- Oil filter for continuous variable valve timing apparatus in engine2US 7,237,518 B2Hyundai Motor Company · 2007
- Method for automatically controlling an internal combustion engine2US 8,688,352 B2MTU Friedrichshafen GmbH · 2014