F15B 2201/40
Constructional details of accumulators not otherwise provided for
F15B2201/40 (Constructional details of accumulators not otherwise provided for) appears on 555 US grants and 373 published applications in this corpus.
Search patents in F15B- Granted patents
- 555
- Published applications
- 373
- Assignees
- 273
- Inventors
- 850
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 11 | 0 |
| 1978 | 12 | 0 |
| 1979 | 12 | 0 |
| 1980 | 13 | 0 |
| 1981 | 16 | 0 |
| 1982 | 15 | 0 |
| 1983 | 7 | 0 |
| 1984 | 13 | 0 |
| 1985 | 8 | 0 |
| 1986 | 13 | 0 |
| 1987 | 15 | 0 |
| 1988 | 13 | 0 |
| 1989 | 11 | 0 |
| 1990 | 3 | 0 |
| 1991 | 11 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 13 | 1 |
| 2002 | 6 | 9 |
| 2003 | 10 | 10 |
| 2004 | 10 | 19 |
| 2005 | 13 | 12 |
| 2006 | 11 | 7 |
| 2007 | 3 | 6 |
| 2008 | 3 | 8 |
| 2009 | 5 | 10 |
| 2010 | 4 | 11 |
| 2011 | 7 | 7 |
| 2012 | 7 | 25 |
| 2013 | 14 | 19 |
| 2014 | 14 | 22 |
| 2015 | 19 | 23 |
| 2016 | 12 | 20 |
| 2017 | 27 | 15 |
| 2018 | 14 | 24 |
| 2019 | 22 | 17 |
| 2020 | 18 | 27 |
| 2021 | 23 | 12 |
| 2022 | 15 | 15 |
| 2023 | 15 | 15 |
| 2024 | 11 | 16 |
| 2025 | 12 | 17 |
| 2026 | 11 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pressure accumulator1 Sep 2026US 12,723,602 B2Hydac Technology GmbH
- Drop-in signal accumulator piston kit and method for replacing an original equipment signal accumulator piston30 Jun 2026US 12,669,175 B2Sonnax Transmission Company
- Hydraulic accumulator2 Jun 2026US 12,644,473 B2Hydac Technology GmbH
- Adaptive repressurizer26 May 2026US 12,638,026 B2Saudi Arabian Oil Company
- Hydraulic pressure control unit19 May 2026US 12,630,131 B2Robert Bosch GmbH
- Bladder surge suppressor1 Oct 2026US 2026/0298389 A1Young Engineering & Manufacturing, Inc.
- Actuator for ground engaging machinery3 Sep 2026US 2026/0258819 A1Parker-Hannifin Corporation
- 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.
- Method2 Apr 2026US 2026/0092610 A1Hydac Technology GmbH
Most cited
By later US patents
- Accumulator engine103US 5,579,640 AThe United States of America as represented by the Administrator of the Environmental Protection Agency · 1996
- Hydrostatic bladder-type storage means90US 4,367,786 ADaimler-Benz Aktiengesellschaft · 1983
- System and method for rapid isothermal gas expansion and compression for energy storage86US 7,802,426 B2SustainX, Inc. · 2010
- Distributed accumulator81US 4,651,781 ANorthrop Corporation · 1987
- Accumulator65US 4,997,009 ANHK Spring Co., Ltd. · 1991