F04B 1/126
Piston shoe retaining means
F04B1/126 (Piston shoe retaining means) appears on 98 US grants and 75 published applications in this corpus.
Search patents in F04B- Granted patents
- 98
- Published applications
- 75
- Assignees
- 49
- Inventors
- 174
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 3 | 6 |
| 2004 | 3 | 6 |
| 2005 | 5 | 4 |
| 2006 | 4 | 3 |
| 2007 | 1 | 4 |
| 2008 | 2 | 1 |
| 2009 | 4 | 1 |
| 2010 | 1 | 0 |
| 2011 | 2 | 4 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 1 | 2 |
| 2015 | 0 | 2 |
| 2016 | 3 | 13 |
| 2017 | 5 | 4 |
| 2018 | 5 | 1 |
| 2019 | 4 | 6 |
| 2020 | 3 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 3 |
| 2023 | 3 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 3 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Axial piston pumps25 Aug 2026US 12,716,404 B2Zhong Moyuan Technology (Shanghai) Co., Ltd.
- Slipper component with ceramic surface11 Aug 2026US 12,704,117 B2Ocean Pacific Technologies
- Hydraulic piston pump/motor with non-cantilevered pistons17 Feb 2026US 12,553,344 B2Goodrich Corporation
- Straight axis variable displacement piston pump with feature to minimize piston side loading23 Sep 2025US 12,421,944 B1Hamilton Sundstrand Corporation
- Piston retainer plate29 Jul 2025US 12,372,074 B1Hamilton Sundstrand Corporation
- Improved axial piston hydraulic machine6 Aug 2026US 2026/0226888 A1
- Slipper component with ceramic surface30 Jul 2026US 2026/0218689 A1Ocean Pacific Technologies
- Compression ring for a piston slipper arrangement, piston slipper arrangement, and axial piston machine30 Apr 2026US 2026/0117755 A1
- Axial piston pumps12 Mar 2026US 2026/0071620 A1Zhong Moyuan Technology (Shanghai) Co., Ltd.
- Piston assembly for hydraulic pump13 Nov 2025US 2025/0347276 A1Goodrich Actuation Systems Limited
Most cited
By later US patents
- Swashplate type axial-piston pump39US 6,406,271 B12002
- Swashplate pump24US 7,018,181 B2Wagner Spray Tech Corporation · 2006
- Hydraulic motors and pumps with engineered surfaces19US 6,895,855 B2The Timken Company · 2005
- Swashplate axial piston pump16US 4,576,554 AHydromatik GmbH · 1986
- Slant plate type hydraulic device16US 4,637,293 AHonda Giken Kogyo Kabushiki Kaisha · 1987