F16H 57/0405
Monitoring quality of lubricant or hydraulic fluids
Official title: {Monitoring quality of lubricant or hydraulic fluids}
F16H57/0405 (Monitoring quality of lubricant or hydraulic fluids) appears on 82 US grants and 89 published applications in this corpus.
Search patents in F16H- Granted patents
- 82
- Published applications
- 89
- Assignees
- 60
- Inventors
- 191
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 2 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 4 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 4 |
| 2013 | 0 | 2 |
| 2014 | 5 | 5 |
| 2015 | 0 | 1 |
| 2016 | 5 | 5 |
| 2017 | 7 | 10 |
| 2018 | 4 | 7 |
| 2019 | 5 | 7 |
| 2020 | 4 | 9 |
| 2021 | 8 | 14 |
| 2022 | 9 | 5 |
| 2023 | 12 | 7 |
| 2024 | 4 | 1 |
| 2025 | 4 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Powertrain, control apparatus and motor control unit31 Mar 2026US 12,589,749 B2Huawei Digital Power Technologies Co., Ltd.
- Abnormality detecting device for conductive particles in a lubricant and mechanical device9 Dec 2025US 12,493,008 B2Nabtesco Corporation
- Deterioration diagnosis apparatus for diagnosing deterioration in a mechanical apparatus, and deterioration diagnosis method for diagnosing deterioration in a mechanical apparatus22 Jul 2025US 12,365,087 B2Kawasaki Jukogyo Kabushiki Kaisha
- Smart system for lubrication fluid delivery4 Feb 2025US 12,215,777 B1Zulu Pods, Inc.
- Method and system for sizing a chip in engine fluid14 Jan 2025US 12,196,548 B2Pratt & Whitney Canada Corp.
- System and method for detecting the presence of as well as for analyzing particles in a flow of lubricant1 Jan 2026US 2026/0002585 A1Airbus Helicopters Technik GmbH
- Sensored cycloidal drive unit gearbox containing integrated motor and control scheme21 Aug 2025US 2025/0262929 A1ConcisionAg LLC
- Foreign object recognition system5 Jun 2025US 2025/0182485 A1Komatsu Ltd.
- Gear device1 May 2025US 2025/0137527 A1Nabtesco Corporation
- Powertrain, control apparatus and motor control unit26 Sep 2024US 2024/0317236 A1Huawei Digital Power Technologies Co., Ltd.
Most cited
By later US patents
- High-sensitivity capacitive oil deterioration and level sensor63US 5,929,754 AKavlico Corporation · 1999
- Device for indicating contamination degree of hydraulic circuit and method of judging the contamination degree61US 5,239,861 AKabushiki Kaisha Komatsu Seisakusho · 1993
- Engine and transmission oil degradation and temperature monitor32US 4,629,334 A1986
- Method to determine the remaining useful life of automatic transmission fluid25US 5,777,211 AChrysler Corporation · 1998
- Hydraulic fluid change indicating device for automatic transmission11US 7,433,770 B2Honda Motor Co., Ltd. · 2008