F15B 1/24
With rigid separating means
Official title: with rigid separating means, e.g. pistons
F15B1/24 (With rigid separating means) appears on 234 US grants and 242 published applications in this corpus.
Search patents in F15B- Granted patents
- 234
- Published applications
- 242
- Assignees
- 159
- Inventors
- 470
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 0 |
| 2002 | 0 | 3 |
| 2003 | 4 | 2 |
| 2004 | 3 | 6 |
| 2005 | 3 | 7 |
| 2006 | 7 | 8 |
| 2007 | 1 | 4 |
| 2008 | 3 | 6 |
| 2009 | 4 | 4 |
| 2010 | 1 | 8 |
| 2011 | 4 | 8 |
| 2012 | 7 | 12 |
| 2013 | 10 | 13 |
| 2014 | 10 | 16 |
| 2015 | 8 | 13 |
| 2016 | 8 | 10 |
| 2017 | 15 | 10 |
| 2018 | 10 | 21 |
| 2019 | 19 | 15 |
| 2020 | 15 | 12 |
| 2021 | 10 | 8 |
| 2022 | 10 | 7 |
| 2023 | 9 | 14 |
| 2024 | 6 | 11 |
| 2025 | 9 | 17 |
| 2026 | 3 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Overpressure compensation systems and assemblies for a subsea manifold11 Aug 2026US 12,704,862 B2FMC Technologies, Inc.
- Adaptive repressurizer26 May 2026US 12,638,026 B2Saudi Arabian Oil Company
- Pressure regulator assembly for a coolant distribution unit10 Feb 2026US 12,547,193 B2Hewlett Packard Enterprise Development LP
- Life determination device and life determination method30 Dec 2025US 12,510,394 B2Toyota Jidosha Kabushiki Kaisha
- Rolling assembly23 Dec 2025US 12,502,813 B2Carl Freudenberg KG
- Actuator for ground engaging machinery3 Sep 2026US 2026/0258819 A1Parker-Hannifin Corporation
- Restraint Systems and Restraint System Methods4 Jun 2026US 2026/0152140 A1Advanced Concepts in Manufacturing LLC
- Device4 Jun 2026US 2026/0153102 A1Hydac Technology GmbH
- Medium pressure accumulator with fast fill supply valve and brake system using same21 May 2026US 2026/0138577 A1ZF Active Safety US Inc.
- Rolling assembly26 Feb 2026US 2026/0054432 A1Carl Freudenberg KG
Most cited
By later US patents
- Subsea accumulator and method of operation of same64US 6,202,753 B12001
- Static head charged hydraulic accumulator45US 4,777,800 AVetco Gray Inc. · 1988
- Accumulator45US 4,799,048 AJidosha Kabushiki Kaisha · 1989
- Vertical roller mill with improved hydro-pneumatic loading system45US 7,028,934 B2F. L. Smidth & Co. · 2006
- Hydraulic accumulator43US 7,322,377 B2Hydac Technology GmbH · 2008