F15B 15/1423
Component parts
Official title: {Component parts; Constructional details}
F15B15/1423 (Component parts) appears on 1,293 US grants and 1,248 published applications in this corpus.
Search patents in F15B- Granted patents
- 1,293
- Published applications
- 1,248
- Assignees
- 786
- Inventors
- 2,569
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 3 | 0 |
| 1980 | 11 | 0 |
| 1981 | 10 | 0 |
| 1982 | 11 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 10 | 0 |
| 1987 | 12 | 0 |
| 1988 | 14 | 0 |
| 1989 | 15 | 0 |
| 1990 | 14 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 5 | 0 |
| 1994 | 17 | 0 |
| 1995 | 19 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 13 | 0 |
| 1999 | 23 | 0 |
| 2000 | 21 | 0 |
| 2001 | 30 | 8 |
| 2002 | 32 | 30 |
| 2003 | 30 | 27 |
| 2004 | 28 | 21 |
| 2005 | 15 | 27 |
| 2006 | 21 | 33 |
| 2007 | 15 | 25 |
| 2008 | 25 | 36 |
| 2009 | 16 | 19 |
| 2010 | 17 | 34 |
| 2011 | 10 | 39 |
| 2012 | 19 | 30 |
| 2013 | 18 | 29 |
| 2014 | 26 | 37 |
| 2015 | 30 | 61 |
| 2016 | 37 | 69 |
| 2017 | 50 | 83 |
| 2018 | 86 | 77 |
| 2019 | 81 | 88 |
| 2020 | 67 | 83 |
| 2021 | 86 | 66 |
| 2022 | 62 | 53 |
| 2023 | 44 | 65 |
| 2024 | 60 | 79 |
| 2025 | 74 | 67 |
| 2026 | 44 | 62 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F15B 15/1447Pistons450
- F15B 15/1428Cylinders250
- F15B 15/1457Piston rods237
- F15B 15/1433End caps190
- F15B 15/1438Cylinder to end cap assemblies184
- F15B 15/1466Hollow piston sliding over a stationary rod inside the cylinder121
- F15B 15/1471Guiding means other than in the end cap101
- F15B 15/1476Special return means95
Recent patents
- Liquid cooled plunger system6 Oct 2026US 12,753,754 B2Kerr Machine Co.
- Control method based on a four-chamber hydraulic cylinder6 Oct 2026US 12,753,780 B2Taiyuan University of Technology
- Auto-compensation-type guide device for moving coil of large-scale vibration table and operation method thereof29 Sep 2026US 12,747,783 B2China University of Mining and Technology
- Clamping device8 Sep 2026US 12,728,503 B2Pascal Engineering Corporation
- Actuator assembly for a heavy construction machine25 Aug 2026US 12,716,429 B2Wipro Enterprises Pvt Ltd
- Actuator unit, system and operating method8 Oct 2026US 2026/0309170 A1Knorr-Bremse Systeme fur Nutzfahrzeuge GmbH
- Method for operating a hydrodynamic compression tool and hydrodynamic compression tool24 Sep 2026US 2026/0284848 A1Cembre S.p.A.
- Constant pressure generating system24 Sep 2026US 2026/0287034 A1White's Welding, LLC
- Slave cylinder with stop ring, method for mounting the slave cylinder and drive train with the slave cylinder24 Sep 2026US 2026/0287057 A1Schaeffler Technologies AG & Co. KG
- Electric cylinder device and brake fluid pressure control device17 Sep 2026US 2026/0274232 A1Advics Co., Ltd.
Most cited
By later US patents
- Arrangement for a piston and cylinder device116US 6,659,240 B22003
- Hydraulic and pneumatic cylinder construction106US 6,439,103 B1Vector Engineering Co. · 2002
- Fluid pressure cylinder apparatus86US 6,568,313 B2Sakagami Seisakusho Ltd. · 2003
- Hydraulic system, manifold and volumetric compensator73US 6,519,939 B1M-Mac Actuators, Inc. · 2003
- Fluid cylinder block having a stress distributing joint67US 9,188,121 B1Forum US, Inc. · 2015