F15B 1/14
By means of a rigid annular supporting member
Official title: by means of a rigid annular supporting member
F15B1/14 (By means of a rigid annular supporting member) appears on 51 US grants and 24 published applications in this corpus.
Search patents in F15B- Granted patents
- 51
- Published applications
- 24
- Assignees
- 20
- Inventors
- 54
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 5 |
| 2019 | 3 | 3 |
| 2020 | 2 | 3 |
| 2021 | 5 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic accumulator2 Jun 2026US 12,644,473 B2Hydac Technology GmbH
- Hydraulic accumulator17 Jun 2025US 12,331,760 B2Hydac Technology GmbH
- Bellows accumulator10 Oct 2023US 11,781,569 B2Hydac Technology GmbH
- Fiberwound tanks25 Jan 2022US 11,231,143 B2Amtrol Licensing Inc.
- Moisture detecting air cap indicator for expansion tank failure26 Oct 2021US 11,156,369 B2Amtrol Licensing Inc.
- Method2 Apr 2026US 2026/0092610 A1Hydac Technology GmbH
- Hydraulic Accumulator26 Sep 2024US 2024/0318669 A1Hydac Technology GmbH
- Hydraulic Accumulator1 Feb 2024US 2024/0035490 A1Hydac Technology GmbH
- Separator element23 Nov 2023US 2023/0375010 A1Hydac Technology GmbH
- Bellows accumulator10 Feb 2022US 2022/0042524 A1Hydac Technology GmbH
Most cited
By later US patents
- Expansion tank diaphragm assembly50US 3,931,834 AThe Goodyear Tire & Rubber Company · 1976
- Hydraulic accumulator with dividing wall supported by connecting and retaining parts46US 5,427,152 AHydac Technology GmbH · 1995
- Split tank closure and diaphragm assembly45US 4,595,037 AEssef Industries, Inc. · 1986
- Tank for the liquid storage and expulsion23US 6,129,236 AOtkrytoe Aktsionernoe Obschestvo “Nauchno-Proizvodstvennoe Obiedinenie “Energomash” Imeni Akademika V.P.Glushko” · 2000
- Accumulator21US 3,948,287 A1976