F15B 1/08
Using a gas cushion
Official title: using a gas cushion; Gas charging devices; Indicators or floats therefor
F15B1/08 (Using a gas cushion) appears on 689 US grants and 553 published applications in this corpus.
Search patents in F15B- Granted patents
- 689
- Published applications
- 553
- Assignees
- 327
- Inventors
- 1,077
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 10 | 0 |
| 1978 | 13 | 0 |
| 1979 | 11 | 0 |
| 1980 | 13 | 0 |
| 1981 | 16 | 0 |
| 1982 | 15 | 0 |
| 1983 | 7 | 0 |
| 1984 | 12 | 0 |
| 1985 | 8 | 0 |
| 1986 | 10 | 0 |
| 1987 | 15 | 0 |
| 1988 | 13 | 0 |
| 1989 | 10 | 0 |
| 1990 | 3 | 0 |
| 1991 | 12 | 0 |
| 1992 | 7 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 13 | 2 |
| 2002 | 8 | 10 |
| 2003 | 14 | 12 |
| 2004 | 11 | 26 |
| 2005 | 18 | 15 |
| 2006 | 13 | 11 |
| 2007 | 3 | 12 |
| 2008 | 10 | 9 |
| 2009 | 9 | 10 |
| 2010 | 5 | 28 |
| 2011 | 10 | 14 |
| 2012 | 19 | 31 |
| 2013 | 26 | 30 |
| 2014 | 20 | 36 |
| 2015 | 18 | 30 |
| 2016 | 25 | 24 |
| 2017 | 29 | 18 |
| 2018 | 25 | 43 |
| 2019 | 33 | 30 |
| 2020 | 28 | 28 |
| 2021 | 29 | 22 |
| 2022 | 24 | 20 |
| 2023 | 19 | 25 |
| 2024 | 12 | 21 |
| 2025 | 19 | 31 |
| 2026 | 11 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Harvester implement with dynamically adjustable float system15 Sep 2026US 12,733,581 B2Deere & Company
- 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.
- System for energy storage, compression and recovery30 Jun 2026US 12,669,083 B2Nova Nexus, LLC
- Energy storage device with a variable volume chamber23 Jun 2026US 12,662,993 B2Idea Invent Evolve Pty Ltd
- Bladder surge suppressor1 Oct 2026US 2026/0298389 A1Young Engineering & Manufacturing, Inc.
- Charging system of a hydraulic accumulator for an agricultural or work vehicle17 Sep 2026US 2026/0276010 A1CNH Industrial Italia S.p.A.
- Actuator for ground engaging machinery3 Sep 2026US 2026/0258819 A1Parker-Hannifin Corporation
- Load dampening system13 Aug 2026US 2026/0235142 A1J. C. Bamford Excavators Limited
- Pressure Diffuser for Use with a Fluid System9 Jul 2026US 2026/0194077 A1The Boeing Company
Most cited
By later US patents
- Hydrostatic bladder-type storage means90US 4,367,786 ADaimler-Benz Aktiengesellschaft · 1983
- Suspended diaphragm88US 6,295,918 B12001
- Distributed accumulator81US 4,651,781 ANorthrop Corporation · 1987
- Accumulator65US 4,997,009 ANHK Spring Co., Ltd. · 1991
- Subsea accumulator and method of operation of same64US 6,202,753 B12001