F04B 53/166
Cylinder liners
Official title: {Cylinder liners}
F04B53/166 (Cylinder liners) appears on 174 US grants and 169 published applications in this corpus.
Search patents in F04B- Granted patents
- 174
- Published applications
- 169
- Assignees
- 119
- Inventors
- 404
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 4 | 5 |
| 2003 | 4 | 2 |
| 2004 | 3 | 3 |
| 2005 | 0 | 5 |
| 2006 | 0 | 3 |
| 2007 | 5 | 4 |
| 2008 | 1 | 5 |
| 2009 | 2 | 4 |
| 2010 | 6 | 5 |
| 2011 | 1 | 4 |
| 2012 | 3 | 6 |
| 2013 | 6 | 9 |
| 2014 | 1 | 7 |
| 2015 | 7 | 2 |
| 2016 | 5 | 8 |
| 2017 | 3 | 10 |
| 2018 | 6 | 12 |
| 2019 | 10 | 5 |
| 2020 | 8 | 8 |
| 2021 | 5 | 10 |
| 2022 | 10 | 12 |
| 2023 | 8 | 10 |
| 2024 | 12 | 11 |
| 2025 | 8 | 10 |
| 2026 | 9 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Syringe pump6 Oct 2026US 12,753,756 B2Fluid Metering, Inc.
- Fluid retention apparatus for fluid end of positive displacement pump and related method25 Aug 2026US 12,716,412 B2
- Packing style piston rod25 Aug 2026US 12,716,413 B2Gd Energy Products, LLC
- Modular plunger packing gland assembly7 Jul 2026US 12,674,452 B2Caterpillar Inc. Joint OC
- Rotary swash plate hydraulic pump19 May 2026US 12,631,165 B2Kawasaki Jukogyo Kabushiki Kaisha
- Proportional volumetric dosing unit8 Oct 2026US 2026/0309135 A1Mixtron S.R.L.
- Two-Member Fixing Structure and High-Pressure Fuel Supply Pump13 Aug 2026US 2026/0235097 A1Astemo, Ltd.
- Piston pump of the type having at least three pumping chambers23 Jul 2026US 2026/0210343 A1Mixtron S.R.L.
- Machine tool for removing worn-out liners from reciprocating compressor cylinders and related method of removal23 Jul 2026US 2026/0210353 A1Nuova Simat S.R.L.
- Fracturing pump arrangement using a plunger with an internal fluid passage21 May 2026US 2026/0139667 A1Kerr Machine Co.
Most cited
By later US patents
- Fluid end with protected flow passages192US 9,739,130 B2Acme Industries, Inc. · 2017
- High pressure homogenizer pump98US 4,773,833 AAPV Gaulin, Inc. · 1988
- Cylinder liner securing apparatus77US 5,572,920 AT. M. Kennedy & Company Limited · 1996
- Liner retention system65US 7,748,310 B2Spickey Valves and Pumps Limited · 2010
- Liner retainer assembly49US 6,209,445 B1Southwest Oilfield Products, Inc. · 2001