F04B 27/0826
Particularities in the contacting area between cylinder barrel and valve plate
Official title: {particularities in the contacting area between cylinder barrel and valve plate}
F04B27/0826 (Particularities in the contacting area between cylinder barrel and valve plate) appears on 11 US grants and 6 published applications in this corpus.
Search patents in F04B- Granted patents
- 11
- Published applications
- 6
- Assignees
- 11
- Inventors
- 20
- Latest grant
- 14 Jan 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 0 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Hydraulic running surface14 Jan 2020US 10,533,541 B1Hydro-Gear Limited Partnership
- Hydrostatic pump barrel with sloped kidney ports30 Jul 2019US 10,364,806 B2Parker-Hannifin Corporation
- Double-headed swash type compressor and method for manufacturing cylinder block1 Jan 2019US 10,167,858 B2Hanon Systems
- Hydraulic running surface10 Jul 2018US 10,018,190 B1Hydro-Gear Limited Partnership
- Hydraulic running surface23 May 2017US 9,657,726 B1Hydro-Gear Limited Partnership
- Double-headed swash type compressor and method for manufacturing cylinder block1 Feb 2018US 2018/0030970 A1Hanon Systems
- Hydrostatic pump barrel with sloped kidney ports19 Oct 2017US 2017/0298912 A1Parker-Hannifin Corporation
- Axial sliding bearing and method of reducing power losses thereof10 Mar 2011US 2011/0056369 A1Purdue Research Foundation
- Bearing restricting device in swash plate hydraulic pump or motor14 May 2009US 2009/0120279 A1Caterpillar Inc.
- Displacer Unit With a Valve Plate Body9 Oct 2008US 2008/0246222 A1Linde Aktiengesellschaft
Most cited
By later US patents
- Sliding bearing with self-adjusted load bearing capacity7US 5,983,781 ASauer Inc. · 1999
- Swash plate type compressor with internal sealing6US 4,717,313 AKabushiki Kaisha Toyoda Jidoshokki Seisakusho · 1988
- Rotor assembly for rotary power device5US 6,145,429 A2000
- Hydraulic running surface2US 9,657,726 B1Hydro-Gear Limited Partnership · 2017
- Hydraulic running surface1US 10,018,190 B1Hydro-Gear Limited Partnership · 2018