F15B 2211/3051
Cross-check valves
F15B2211/3051 (Cross-check valves) appears on 177 US grants and 145 published applications in this corpus.
Search patents in F15B- Granted patents
- 177
- Published applications
- 145
- Assignees
- 125
- Inventors
- 354
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 2 |
| 2002 | 6 | 5 |
| 2003 | 7 | 12 |
| 2004 | 9 | 4 |
| 2005 | 8 | 6 |
| 2006 | 4 | 9 |
| 2007 | 6 | 8 |
| 2008 | 3 | 5 |
| 2009 | 3 | 8 |
| 2010 | 6 | 7 |
| 2011 | 3 | 6 |
| 2012 | 3 | 1 |
| 2013 | 3 | 1 |
| 2014 | 2 | 2 |
| 2015 | 5 | 6 |
| 2016 | 0 | 3 |
| 2017 | 3 | 2 |
| 2018 | 4 | 6 |
| 2019 | 4 | 4 |
| 2020 | 5 | 9 |
| 2021 | 9 | 6 |
| 2022 | 5 | 10 |
| 2023 | 8 | 6 |
| 2024 | 5 | 7 |
| 2025 | 2 | 6 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Energy storage and reutilization for a single-rod electro-hydrostatic actuator9 Jun 2026US 12,650,138 B2University of Manitoba
- Synchronized hybrid clamp force controller for lift truck attachment17 Mar 2026US 12,577,091 B2Cascade Corporation
- Hydraulic system, method, and integrated valve block of slewing mechanism6 Jan 2026US 12,516,685 B2Shandong University
- Submersible hydraulic power units with interchangeable manifolds20 May 2025US 12,305,670 B2KTI Hydraulics Inc.
- Hydraulic drive unit for a stretcher and stretcher with a hydraulic drive unit15 Apr 2025US 12,274,653 B2HAWE Hydraulik SE
- Submersible Hydraulic Power Units with Interchangeable Manifolds11 Jun 2026US 2026/0160275 A1
- Electro-Hydraulic Actuator Assembly with a Fluid Access Port11 Jun 2026US 2026/0160279 A1Parker-Hannifin Corporation
- Asphalt finisher4 Jun 2026US 2026/0152905 A1Sumitomo Construction Machinery Co., Ltd.
- Pilot operated blow-off valves for hydraulic actuators19 Mar 2026US 2026/0078778 A1ClearMotion, Inc.
- Hydraulic system for a dynamic energy transfer system11 Dec 2025US 2025/0376036 A1Caterpillar Inc.
Most cited
By later US patents
- Hydraulic circuit for synchronized horizontal extension of cylinders86US 7,926,410 B2JR Automation Technologies, LLC · 2011
- Device and method for regulating fluid flow in a well74US 6,516,888 B1Triangle Equipment AS · 2003
- Hydraulic system, manifold and volumetric compensator73US 6,519,939 B1M-Mac Actuators, Inc. · 2003
- Shovel64US 6,789,335 B1Kobelco Construction Machinery Co., Ltd. · 2004
- Hydraulic valve module63US 4,170,214 ADouble A Products Company · 1979