F15B 1/22
Liquid port constructions
F15B1/22 (Liquid port constructions) appears on 60 US grants and 56 published applications in this corpus.
Search patents in F15B- Granted patents
- 60
- Published applications
- 56
- Assignees
- 39
- Inventors
- 111
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 3 | 3 |
| 2003 | 7 | 3 |
| 2004 | 1 | 12 |
| 2005 | 8 | 1 |
| 2006 | 2 | 3 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 0 | 4 |
| 2019 | 3 | 1 |
| 2020 | 1 | 2 |
| 2021 | 2 | 3 |
| 2022 | 5 | 1 |
| 2023 | 0 | 3 |
| 2024 | 2 | 4 |
| 2025 | 2 | 5 |
| 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 accumulator12 Aug 2025US 12,383,911 B2Hydac Technology GmbH
- Hydraulic accumulator17 Jun 2025US 12,331,760 B2Hydac Technology GmbH
- Renewable energy and waste heat harvesting system12 Mar 2024US 11,927,203 B2A & A International, LLC
- Hydraulic powering system and method of operating a hydraulic powering system12 Mar 2024US 11,927,204 B2Industries Mailhot Inc.
- Method2 Apr 2026US 2026/0092610 A1Hydac Technology GmbH
- Bellows Accumulator2 Oct 2025US 2025/0305520 A1Hydac Technology GmbH
- Accumulator for a chassis-level cooling system15 May 2025US 2025/0159840 A1Hewlett Packard Enterprise Development LP
- Eha accumulator refilling arrangement17 Apr 2025US 2025/0121931 A1Goodrich Actuation Systems Limited
- Hydraulic Accumulator20 Mar 2025US 2025/0092885 A1Hydac Technology GmbH
Most cited
By later US patents
- Accumulator51US 6,789,576 B2NHK Spring Co., Ltd. · 2004
- Accumulator and manufacturing process thereof33US 6,286,552 B1NHK Spring Co., Ltd. · 2001
- Hydraulic hybrid accumulator shut-off valve32US 6,619,325 B2The United States of America as represented by the Administrator of the U. S. Environmental Protection Agency · 2003
- Pressure means storage device26US 6,478,051 B1Continental Teves AG & Co. oHG · 2002
- Method for making a hydropneumatic accumulator22US 5,456,787 AJ. E. Miles, Inc. · 1995