F15B 1/04
Accumulators
F15B1/04 (Accumulators) appears on 936 US grants and 845 published applications in this corpus.
Search patents in F15B- Granted patents
- 936
- Published applications
- 845
- Assignees
- 474
- Inventors
- 1,652
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 11 | 0 |
| 1978 | 13 | 0 |
| 1979 | 12 | 0 |
| 1980 | 13 | 0 |
| 1981 | 16 | 0 |
| 1982 | 16 | 0 |
| 1983 | 7 | 0 |
| 1984 | 13 | 0 |
| 1985 | 9 | 0 |
| 1986 | 13 | 0 |
| 1987 | 16 | 0 |
| 1988 | 13 | 0 |
| 1989 | 11 | 0 |
| 1990 | 3 | 0 |
| 1991 | 12 | 0 |
| 1992 | 8 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 10 | 0 |
| 2000 | 10 | 0 |
| 2001 | 14 | 2 |
| 2002 | 9 | 10 |
| 2003 | 14 | 12 |
| 2004 | 11 | 26 |
| 2005 | 18 | 16 |
| 2006 | 15 | 13 |
| 2007 | 3 | 12 |
| 2008 | 11 | 12 |
| 2009 | 10 | 15 |
| 2010 | 6 | 29 |
| 2011 | 15 | 22 |
| 2012 | 21 | 45 |
| 2013 | 31 | 42 |
| 2014 | 33 | 48 |
| 2015 | 28 | 42 |
| 2016 | 32 | 47 |
| 2017 | 47 | 48 |
| 2018 | 45 | 55 |
| 2019 | 54 | 40 |
| 2020 | 43 | 43 |
| 2021 | 39 | 36 |
| 2022 | 38 | 41 |
| 2023 | 33 | 49 |
| 2024 | 40 | 49 |
| 2025 | 45 | 63 |
| 2026 | 29 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems, devices, and methods for a hydraulic robotic arm6 Oct 2026US 12,752,419 B2Sanctuary Cognitive Systems Corporation
- Auto-compensation-type guide device for moving coil of large-scale vibration table and operation method thereof29 Sep 2026US 12,747,783 B2China University of Mining and Technology
- Belt tensioning system22 Sep 2026US 12,741,821 B2Kuhn S. A.
- Method and apparatus for downhole fluid microsample collection with staged hydraulic actuation22 Sep 2026US 12,742,386 B2Halliburton Energy Services.Inc.
- Harvester implement with dynamically adjustable float system15 Sep 2026US 12,733,581 B2Deere & Company
- Bladder surge suppressor1 Oct 2026US 2026/0298389 A1Young Engineering & Manufacturing, Inc.
- Charging system of a hydraulic accumulator for an agricultural or work vehicle17 Sep 2026US 2026/0276010 A1CNH Industrial Italia S.p.A.
- Static force amplifier17 Sep 2026US 2026/0276011 A1Canrig Robotic Technologies AS
- Actuator for ground engaging machinery3 Sep 2026US 2026/0258819 A1Parker-Hannifin Corporation
- Systems and Methods for Improved Cycling of Valve Assemblies20 Aug 2026US 2026/0243279 A1Force Pressure Control, LLC
Most cited
By later US patents
- Medicament preparation and treatment devices, methods, and systems259US 10,478,544 B2NxStage Medical, Inc. · 2019
- Hydrostatic bladder-type storage means90US 4,367,786 ADaimler-Benz Aktiengesellschaft · 1983
- Suspended diaphragm88US 6,295,918 B12001
- Pressure storage system and method to operate pressure storage system82US 9,328,745 B2MAGNA STEYR Fahrzeugtechnik AG & Co KG · 2016
- Distributed accumulator81US 4,651,781 ANorthrop Corporation · 1987