F15B 2201/415
Gas ports
F15B2201/415 (Gas ports) appears on 280 US grants and 114 published applications in this corpus.
Search patents in F15B- Granted patents
- 280
- Published applications
- 114
- Assignees
- 124
- Inventors
- 368
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 8 | 0 |
| 1978 | 10 | 0 |
| 1979 | 10 | 0 |
| 1980 | 12 | 0 |
| 1981 | 12 | 0 |
| 1982 | 13 | 0 |
| 1983 | 6 | 0 |
| 1984 | 11 | 0 |
| 1985 | 5 | 0 |
| 1986 | 10 | 0 |
| 1987 | 13 | 0 |
| 1988 | 9 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 4 | 7 |
| 2003 | 8 | 7 |
| 2004 | 6 | 12 |
| 2005 | 10 | 5 |
| 2006 | 3 | 4 |
| 2007 | 1 | 2 |
| 2008 | 2 | 3 |
| 2009 | 3 | 2 |
| 2010 | 1 | 4 |
| 2011 | 0 | 1 |
| 2012 | 1 | 4 |
| 2013 | 5 | 3 |
| 2014 | 1 | 3 |
| 2015 | 1 | 8 |
| 2016 | 2 | 3 |
| 2017 | 7 | 5 |
| 2018 | 4 | 5 |
| 2019 | 6 | 2 |
| 2020 | 5 | 4 |
| 2021 | 3 | 4 |
| 2022 | 4 | 3 |
| 2023 | 3 | 8 |
| 2024 | 2 | 5 |
| 2025 | 6 | 6 |
| 2026 | 4 | 3 |
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
- Hydraulic accumulator2 Jun 2026US 12,644,473 B2Hydac Technology GmbH
- Adaptive repressurizer26 May 2026US 12,638,026 B2Saudi Arabian Oil Company
- Bladder surge suppressor13 Jan 2026US 12,523,330 B2Young Engineering & Manufacturing, Inc.
- Device, system and method for isothermal compression, constant-pressure power generation and physical energy storage16 Dec 2025US 12,497,941 B2Northwestern Polytechnical University
- Bladder surge suppressor1 Oct 2026US 2026/0298389 A1Young Engineering & Manufacturing, Inc.
- Device4 Jun 2026US 2026/0153102 A1Hydac Technology GmbH
- Method2 Apr 2026US 2026/0092610 A1Hydac Technology GmbH
- External pressure fluid reservoir for storing energy12 Jun 2025US 2025/0188958 A1Energy Vault, Inc.
- Surface treatment jig1 May 2025US 2025/0135481 A1NHK Spring Co., Ltd.
Most cited
By later US patents
- Hydrostatic bladder-type storage means90US 4,367,786 ADaimler-Benz Aktiengesellschaft · 1983
- Accumulator65US 4,997,009 ANHK Spring Co., Ltd. · 1991
- Adaptive hydropneumatic pulsation damper52US 5,797,430 AMercedes-Benz AG · 1998
- Accumulator51US 6,789,576 B2NHK Spring Co., Ltd. · 2004
- Expansion tank diaphragm assembly50US 3,931,834 AThe Goodyear Tire & Rubber Company · 1976