F15B 15/1442
End cap sealings
Official title: {End cap sealings}
F15B15/1442 (End cap sealings) appears on 45 US grants and 38 published applications in this corpus.
Search patents in F15B- Granted patents
- 45
- Published applications
- 38
- Assignees
- 43
- Inventors
- 89
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 3 |
| 2016 | 0 | 1 |
| 2017 | 1 | 3 |
| 2018 | 5 | 3 |
| 2019 | 1 | 6 |
| 2020 | 1 | 3 |
| 2021 | 9 | 3 |
| 2022 | 3 | 1 |
| 2023 | 1 | 3 |
| 2024 | 2 | 0 |
| 2025 | 5 | 4 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic actuator with dual pneumatic operation applied as hydraulic actuation for hydroelectric power plants30 Sep 2025US 12,429,075 B2Metal Tecnica Bovenau Ltda
- Dual-system hydraulic actuator12 Aug 2025US 12,385,507 B2Parker-Hannifin Corporation
- Restraint systems and restraint system methods27 May 2025US 12,311,859 B2Advanced Concepts in Manufacturing LLC
- Hydraulic cylinder bottom end cap20 May 2025US 12,305,672 B1
- Pressure-medium cylinder having a static end-position seal7 Jan 2025US 12,188,495 B2Aventics GmbH
- Dual-wall cylinder for fluid control device actuator13 Aug 2026US 2026/0235144 A1
- Cylinder16 Jul 2026US 2026/0201910 A1Festo AG & Co.
- Restraint Systems and Restraint System Methods14 Aug 2025US 2025/0256674 A1Advanced Concepts in Manufacturing LLC
- System And Method For Protecting A Hydraulic System Of A Work Machine19 Jun 2025US 2025/0198432 A1Komatsu America Corp.
- Hydraulic actuator with dual pneumatic operation applied as hydraulic actuation for hydroelectric power plants20 Mar 2025US 2025/0092887 A1Metal Tecnica Bovenau Ltda
Most cited
By later US patents
- Pneumatic cylinder apparatus17US 5,241,896 APHD, Inc. · 1993
- Fluid cylinder and method of assembly16US 5,680,808 AIngersoll-Rand Company · 1997
- Compact fluid operated cylinder and method10US 5,456,161 ACompact Air Products, Inc. · 1995
- Hydraulic cylinder with end closure assembly10US 5,487,326 A1996
- Pressure vessels having end closures and retainers9US 5,357,847 AHytork Actuators Limited · 1994