F15B 2201/00
Accumulators
F15B2201/00 (Accumulators) appears on 876 US grants and 755 published applications in this corpus.
Search patents in F15B- Granted patents
- 876
- Published applications
- 755
- Assignees
- 428
- Inventors
- 1,487
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 17 | 0 |
| 1977 | 11 | 0 |
| 1978 | 12 | 0 |
| 1979 | 13 | 0 |
| 1980 | 13 | 0 |
| 1981 | 16 | 0 |
| 1982 | 16 | 0 |
| 1983 | 7 | 0 |
| 1984 | 13 | 0 |
| 1985 | 8 | 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 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 14 | 2 |
| 2002 | 10 | 10 |
| 2003 | 14 | 12 |
| 2004 | 11 | 25 |
| 2005 | 18 | 16 |
| 2006 | 16 | 15 |
| 2007 | 4 | 15 |
| 2008 | 11 | 13 |
| 2009 | 10 | 18 |
| 2010 | 7 | 17 |
| 2011 | 13 | 18 |
| 2012 | 10 | 36 |
| 2013 | 24 | 36 |
| 2014 | 26 | 38 |
| 2015 | 31 | 53 |
| 2016 | 26 | 45 |
| 2017 | 51 | 42 |
| 2018 | 39 | 61 |
| 2019 | 48 | 42 |
| 2020 | 53 | 47 |
| 2021 | 51 | 40 |
| 2022 | 33 | 38 |
| 2023 | 31 | 33 |
| 2024 | 29 | 32 |
| 2025 | 28 | 35 |
| 2026 | 17 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F15B 2201/30Accumulator separating meansIndexing code704
- F15B 2201/20Accumulator cushioning meansIndexing code621
- F15B 2201/40Constructional details of accumulators not otherwise provided forIndexing code555
- F15B 2201/50Monitoring, detection and testing means for accumulatorsIndexing code178
- F15B 2201/60Assembling or methods for making accumulatorsIndexing code138
Recent patents
- Work machine accessory motor load protection8 Sep 2026US 12,729,699 B2Caterpillar Inc.
- Pressure accumulator1 Sep 2026US 12,723,602 B2Hydac Technology GmbH
- Overpressure compensation systems and assemblies for a subsea manifold11 Aug 2026US 12,704,862 B2FMC Technologies, Inc.
- Drop-in signal accumulator piston kit and method for replacing an original equipment signal accumulator piston30 Jun 2026US 12,669,175 B2Sonnax Transmission Company
- Systems, methods, and apparatuses to overcome pump-induced pressure excursions and control aliasing with reduced volume, absorbent negative-pressure therapy systems16 Jun 2026US 12,653,943 B2KCI Manufacturing Unlimited Company
- Bladder surge suppressor1 Oct 2026US 2026/0298389 A1Young Engineering & Manufacturing, Inc.
- Alarm system for detecting pressure tank failure24 Sep 2026US 2026/0290144 A1
- Actuator for ground engaging machinery3 Sep 2026US 2026/0258819 A1Parker-Hannifin Corporation
- Load dampening system13 Aug 2026US 2026/0235142 A1J. C. Bamford Excavators Limited
- Integrated Electrohydraulic Actuator30 Jul 2026US 2026/0218734 A1Parker-Hannifin Corporation
Most cited
By later US patents
- Medicament preparation and treatment devices, methods, and systems259US 10,478,544 B2NxStage Medical, Inc. · 2019
- 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
- Suspended diaphragm88US 6,295,918 B12001
- System and method for rapid isothermal gas expansion and compression for energy storage86US 7,802,426 B2SustainX, Inc. · 2010