B60T 8/1831
Pressure reducing or limiting valves
Official title: {pressure reducing or limiting valves}
B60T8/1831 (Pressure reducing or limiting valves) appears on 100 US grants and 6 published applications in this corpus.
Search patents in B60T- Granted patents
- 100
- Published applications
- 6
- Assignees
- 51
- Inventors
- 118
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 5 | 0 |
| 1978 | 10 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 0 | 0 |
| 1982 | 6 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 7 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Remote stop system for a vehicle22 Sep 2026US 12,741,618 B2Kodiak Robotics, Inc.
- Remote stop system for a vehicle18 Nov 2025US 12,472,912 B2Kodiak Robotics, Inc.
- Hydraulic unit for brake system28 Feb 2023US 11,590,949 B2Hyundai Mobis Co., Ltd.
- Hydraulic brake system5 Feb 2019US 10,196,049 B2Advics Co., Ltd.
- Load sensing system12 Jul 2005US 6,915,884 B1Glide-Rite Products Limited
- Brake system and method for braking a vehicle having at least two axles15 Aug 2024US 2024/0270222 A1
- Remote stop system for a vehicle13 Jun 2024US 2024/0190401 A1Kodiak Robotics, Inc.
- Hydraulic unit for brake system28 Jan 2021US 2021/0024047 A1Hyundai Mobis Co., Ltd.
- Hydraulic brake system5 Apr 2018US 2018/0093652 A1Advics Co., Ltd.
- Brake system with graduated empty/load2 Oct 2003US 2003/0184148 A1New York Air Brake Corporation
Most cited
By later US patents
- Combined load-sensing proportion and relay valve for an air brake system21US 3,944,294 AJidosha Kiki Co., Ltd. · 1976
- Empty-load changeover valve for railway car20US 5,106,168 AWestinghouse Air Brake Company · 1992
- Hydraulic pressure control system for split brake system18US 4,229,049 AAisin Seiki Kabushiki Kaisha · 1980
- Braking correction device15US 4,101,176 ASociete Anonyme D. B. A. · 1978
- Piston sealing arrangement for pressure-fluid-operated systems12US 5,140,904 AAlfred Teves GmbH · 1992