F15B 15/1428
Cylinders
Official title: {Cylinders (F15B15/1438 takes precedence)}
F15B15/1428 (Cylinders) appears on 250 US grants and 278 published applications in this corpus.
Search patents in F15B- Granted patents
- 250
- Published applications
- 278
- Assignees
- 212
- Inventors
- 629
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 6 | 7 |
| 2003 | 6 | 7 |
| 2004 | 6 | 1 |
| 2005 | 4 | 3 |
| 2006 | 5 | 9 |
| 2007 | 2 | 2 |
| 2008 | 5 | 4 |
| 2009 | 0 | 2 |
| 2010 | 0 | 10 |
| 2011 | 4 | 6 |
| 2012 | 5 | 1 |
| 2013 | 3 | 2 |
| 2014 | 3 | 7 |
| 2015 | 1 | 9 |
| 2016 | 3 | 13 |
| 2017 | 9 | 14 |
| 2018 | 13 | 26 |
| 2019 | 20 | 26 |
| 2020 | 23 | 21 |
| 2021 | 22 | 16 |
| 2022 | 19 | 11 |
| 2023 | 5 | 15 |
| 2024 | 16 | 23 |
| 2025 | 10 | 19 |
| 2026 | 18 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Working cylinder21 Jul 2026US 12,687,184 B2BüMach Engineering International B. V.
- Integrated pump device16 Jun 2026US 12,655,857 B2Denso Corporation
- Clamping brake for hydraulic rotating block26 May 2026US 12,637,036 B1Hydro-Gear Limited Partnership
- 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.
- 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
- Hydraulic cylinder with carbon fiber10 Sep 2026US 2026/0266316 A1Milwaukee Electric Tool Corporation
- Actuator for ground engaging machinery3 Sep 2026US 2026/0258819 A1Parker-Hannifin Corporation
Most cited
By later US patents
- Apparatus and method for dual mode compact hydraulic system42US 7,434,395 B2Delphi Technologies, Inc. · 2008
- Fluid flow control damper assembly40US 6,817,378 B2ABCO Consulting, Inc. · 2004
- Extended stroke linear actuator assembly39US 5,431,087 A1995
- Piston and cylinder device with fixed conductive guide on periphery of cylinder31US 5,103,172 AFesto AG & Co. · 1992
- Ballistic tolerant hydraulic control actuator and method of fabricating same27US 4,300,439 AUnited Technologies Corporation · 1981