B60T 17/225
Brake fluid level indicators
Official title: {brake fluid level indicators (level indication in general G01F; H01H)}
B60T17/225 (Brake fluid level indicators) appears on 135 US grants and 61 published applications in this corpus.
Search patents in B60T- Granted patents
- 135
- Published applications
- 61
- Assignees
- 54
- Inventors
- 244
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 8 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 9 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 5 |
| 2011 | 1 | 3 |
| 2012 | 1 | 2 |
| 2013 | 2 | 1 |
| 2014 | 4 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 6 |
| 2019 | 3 | 3 |
| 2020 | 5 | 5 |
| 2021 | 0 | 6 |
| 2022 | 3 | 7 |
| 2023 | 7 | 8 |
| 2024 | 5 | 4 |
| 2025 | 9 | 0 |
| 2026 | 2 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for sensing liquid flowing into housing of electronic control device7 Apr 2026US 12,596,047 B2Hl Mando Corporation
- Bicycle hydraulic braking system of the disc type and related components and methods10 Feb 2026US 12,545,358 B2Campagnolo S.r.l.
- Oil leak detecting method of brake system and detecting system thereof4 Nov 2025US 12,459,483 B2Hl Mando Corporation
- Vehicle braking system comprising a service brake indicator device and vehicle provided with such a system9 Sep 2025US 12,409,822 B2WABTEC Hauts-de-France
- Bicycle hydraulic disc braking system and a method and system for diagnosing the braking system2 Sep 2025US 12,403,881 B2Campagnolo S.r.l.
- Method for checking a vehicle braking system27 Aug 2026US 2026/0249831 A1ZF Active Safety GmbH
- Reservoir tank and electronic brake system including the same16 Apr 2026US 2026/0103175 A1Hl Mando Corporation
- Braking device for a vehicle with increased operating safety and method for operation26 Feb 2026US 2026/0054706 A1Continental Automotive Technologies GmbH
- Brake fluid reservoir12 Feb 2026US 2026/0042432 A1ZF Active Safety US Inc.
- Electric over hydraulic braking system15 Aug 2024US 2024/0270215 A1
Most cited
By later US patents
- Compensating reservoir for a multi-circuit hydraulic brake system25US 3,989,056 AITT Industries, Inc. · 1976
- Hydraulic dual circuit brake system for road vehicles25US 4,629,258 ADaimler-Benz Aktiengesellschaft · 1986
- Dry interface corner actuator single sensor for lining wear and low reservoir detection25US 6,549,126 B2Delphi Technologies, Inc. · 2003
- Trailer hitch with surge braking/dampening apparatus23US 6,375,211 B12002
- Apparatus for detecting variation of a condition amount in a mechanical device21US 4,117,451 AToyota Jidosha Kogyo Kabushiki Kaisha · 1978