F01L 2800/11
Fault detection, diagnosis
F01L2800/11 (Fault detection, diagnosis) appears on 159 US grants and 169 published applications in this corpus.
Search patents in F01L- Granted patents
- 159
- Published applications
- 169
- Assignees
- 58
- Inventors
- 323
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 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 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 4 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 2 | 5 |
| 2006 | 6 | 5 |
| 2007 | 4 | 4 |
| 2008 | 4 | 8 |
| 2009 | 1 | 10 |
| 2010 | 8 | 8 |
| 2011 | 10 | 8 |
| 2012 | 4 | 2 |
| 2013 | 7 | 12 |
| 2014 | 4 | 9 |
| 2015 | 14 | 6 |
| 2016 | 5 | 14 |
| 2017 | 11 | 9 |
| 2018 | 11 | 11 |
| 2019 | 14 | 16 |
| 2020 | 16 | 10 |
| 2021 | 8 | 8 |
| 2022 | 7 | 9 |
| 2023 | 8 | 4 |
| 2024 | 5 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Control device for hydraulic control valve28 Apr 2026US 12,612,912 B2Hitachi Astemo, Ltd.
- Valvetrain testing using instrumented pushrod9 Sep 2025US 12,410,998 B2Textron Innovations Inc.
- Valve train device31 Dec 2024US 12,180,862 B2Ktm AG
- Vehicle system6 Aug 2024US 12,055,074 B1GM Global Technology Operations LLC
- Exhaust valve, exhaust valve assembly and exhaust valve system for two-stroke internal combustion engines, two-stroke internal combustion engine having same and method for cleaning an exhaust valve25 Jun 2024US 12,018,627 B2BRP US Inc.
- System and method for distinguishing between a timing chain jump and a lock-up of an actuator in a variable valve timing device2 Jul 2026US 2026/0185468 A1Vitesco Technologies GmbH
- Method for managing a starting phase of a hybrid vehicle5 Feb 2026US 2026/0034992 A1Schaeffler Technologies AG & Co. KG
- Control Device for Hydraulic Control Valve27 Mar 2025US 2025/0101979 A1Hitachi Astemo, Ltd.
- Valve train device25 Jul 2024US 2024/0247599 A1Ktm AG
- Method for monitoring the operation of an internal combustion engine, control device designed to carry out a method of this type, and internal combustion engine having a control device of this type13 Jun 2024US 2024/0191670 A1Rolls-Royce Solutions GmbH
Most cited
By later US patents
- Method of operating an electromagnetically actuated fuel intake or exhaust valve of an internal combustion engine102US 4,823,825 A1989
- Method for effectively diagnosing the operational state of a variable valve lift device47US 7,063,057 B1Delphi Technologies, Inc. · 2006
- Rocker arm assembly and components therefor47US 8,915,225 B2Eaton Corporation · 2014
- Sensing and control of a variable valve actuation system43US 8,985,074 B2Eaton Corporation · 2015
- System to diagnose variable valve actuation malfunctions by monitoring fluid pressure in a hydraulic lash adjuster gallery40US 9,016,252 B2Eaton Corporation · 2015