F16H 57/0449
Sensors or indicators for controlling the fluid level
Official title: {Sensors or indicators for controlling the fluid level}
F16H57/0449 (Sensors or indicators for controlling the fluid level) appears on 59 US grants and 61 published applications in this corpus.
Search patents in F16H- Granted patents
- 59
- Published applications
- 61
- Assignees
- 53
- Inventors
- 165
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 2 | 2 |
| 2008 | 0 | 2 |
| 2009 | 1 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 0 |
| 2013 | 3 | 2 |
| 2014 | 1 | 4 |
| 2015 | 2 | 1 |
| 2016 | 1 | 2 |
| 2017 | 2 | 4 |
| 2018 | 5 | 7 |
| 2019 | 3 | 5 |
| 2020 | 4 | 1 |
| 2021 | 1 | 2 |
| 2022 | 6 | 7 |
| 2023 | 5 | 4 |
| 2024 | 2 | 4 |
| 2025 | 4 | 6 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Remote gearbox lubricant level gauge system for rotorcraft23 Jun 2026US 12,663,071 B2Textron Innovations Inc.
- Discharged liquid circulation system, an electric drive power assembly and an automobile2 Jun 2026US 12,646,998 B2Jing-Jin Electric Technologies Co., Ltd.
- Gearbox arrangement providing partial vacuum within a gearbox device as well as method of efficiently providing and maintaining partial vacuum and use27 Jan 2026US 12,535,130 B2Flender-Graffenstaden S.A.S.
- Exciter with separate housing and mounting plate30 Dec 2025US 12,508,626 B2Sandvik Rock Processing Australia Pty Limited
- Cooling vibration exciter apparatus23 Dec 2025US 12,502,691 B2Sandvik Rock Processing Australia Pty Limited
- Method for determining at least one volume flow rate in an apparatus for a hydraulic system, computer program product, and computer device2 Jul 2026US 2026/0185603 A1Audi AG
- Discharged liquid circulation system, an electric drive power assembly and an automobile20 Nov 2025US 2025/0357824 A1Jing-Jin Electric Technologies Co., Ltd.
- Gearbox arrangement providing partial vacuum within a gearbox device as well as method of efficiently providing and maintaining partial vacuum and use28 Aug 2025US 2025/0271056 A1Flender-Graffenstaden S.A.S.
- Gearbox fluid measuring dipstick7 Aug 2025US 2025/0251269 A1Progress Rail Locomotive Inc.
- Actively actuated pods and methods of using same29 May 2025US 2025/0172204 A1Zulu Pods, Inc.
Most cited
By later US patents
- Vaccum operated dry sump system33US 5,101,936 AFord Motor Company · 1992
- Apparatus and technique for fluid level determination in automatic transmissions23US 5,282,386 AGeneral Motors Corporation · 1994
- Capacitive oil level sensor for vehicular drive axles22US 6,617,968 B1Dana Corporation · 2003
- Fluid level monitor and filler assembly18US 4,806,902 A1989
- Oil level gauge17US 5,113,594 AAisin Aw Co., Ltd. · 1992