F15B 1/027
Having accumulator charging devices
Official title: having accumulator charging devices
F15B1/027 (Having accumulator charging devices) appears on 371 US grants and 369 published applications in this corpus.
Search patents in F15B- Granted patents
- 371
- Published applications
- 369
- Assignees
- 246
- Inventors
- 848
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 2 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 2 |
| 2004 | 3 | 3 |
| 2005 | 3 | 2 |
| 2006 | 1 | 4 |
| 2007 | 5 | 3 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 1 | 6 |
| 2012 | 4 | 10 |
| 2013 | 4 | 21 |
| 2014 | 6 | 29 |
| 2015 | 15 | 26 |
| 2016 | 19 | 25 |
| 2017 | 19 | 39 |
| 2018 | 29 | 28 |
| 2019 | 34 | 29 |
| 2020 | 35 | 24 |
| 2021 | 22 | 23 |
| 2022 | 26 | 23 |
| 2023 | 22 | 22 |
| 2024 | 21 | 15 |
| 2025 | 16 | 21 |
| 2026 | 14 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Energy harvesting system and method for converting mechanical energy into electrical energy8 Sep 2026US 12,728,684 B1
- Work machine accessory motor load protection8 Sep 2026US 12,729,699 B2Caterpillar Inc.
- Buoyant compressed air energy storage25 Aug 2026US 12,716,400 B2Black & Veatch Corporation
- Energy storage and reutilization for a single-rod electro-hydrostatic actuator9 Jun 2026US 12,650,138 B2University of Manitoba
- Adaptive repressurizer26 May 2026US 12,638,026 B2Saudi Arabian Oil Company
- Mobile machine with improved electric powered actuator system6 Aug 2026US 2026/0226710 A1Moog Inc.
- Self-energy storage device and method applied to constant mooring tension21 May 2026US 2026/0138709 A1Tianjin Research Institute for Water Transport Engineering, M.O.T.
- Intermediate hydraulic system and method of use30 Apr 2026US 2026/0117802 A1Country Mechanical Services
- Energy Storage and Control System for Pipeline Flow Control12 Feb 2026US 2026/0043422 A1
- Systems and Methods for Hydraulic Ride Control15 Jan 2026US 2026/0015826 A1HUSCO International, Inc.
Most cited
By later US patents
- Magnetic field energy responsive position sensing apparatus and method87US 5,789,915 ANartron Corporation · 1998
- Inline bladder-type accumulator for downhole applications61US 7,353,845 B2Smith International, Inc. · 2008
- Pressure supply system having means for controlling an output pressure thereof51US 5,197,787 AHonda Giken Kogyo Kabushiki Kaisha · 1993
- Control for hydraulic accumulator system43US 4,278,403 A1981
- Ride control system42US 5,733,095 ACaterpillar Inc. · 1998