F16F 2230/42
Multiple pistons
F16F2230/42 (Multiple pistons) appears on 48 US grants and 67 published applications in this corpus.
Search patents in F16F- Granted patents
- 48
- Published applications
- 67
- Assignees
- 41
- Inventors
- 148
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 2 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 4 |
| 2019 | 1 | 1 |
| 2020 | 4 | 3 |
| 2021 | 4 | 10 |
| 2022 | 5 | 8 |
| 2023 | 5 | 9 |
| 2024 | 7 | 9 |
| 2025 | 3 | 7 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- End-stop control valves for providing progessive damping forces in vibration dampers15 Sep 2026US 12,736,103 B2thyssenkrupp AG
- Vibration isolator for supporting a payload25 Aug 2026US 12,716,462 B2ASML Netherlands B. V.
- Device for controlling fluid flow in a shock assembly18 Aug 2026US 12,710,084 B2Fox Factory, Inc.
- Frequency sensitive shock absorber12 May 2026US 12,624,740 B2Hl Mando Corporation
- Sealing device and damper for hydraulic equipment7 Apr 2026US 12,595,834 B2KYB Corporation
- Shock absorbing device and suspension device17 Sep 2026US 2026/0276053 A1Astemo, Ltd.
- Progressive end-stop control valves for vibration dampers30 Jul 2026US 2026/0218772 A1thyssenkrupp AG
- Hydraulic damper30 Jul 2026US 2026/0218773 A1Beijingwest Industries Co., Ltd.
- Hydraulic Suspension Dampers with Control Valve Assembly and Regulating Controls18 Jun 2026US 2026/0168557 A1
- Damper limiting system26 Mar 2026US 2026/0085739 A1thyssenkrupp AG
Most cited
By later US patents
- Damping adjuster for shock absorber218US 6,360,857 B1Fox Factory, Inc. · 2002
- Shock absorber158US 5,810,128 AYamaha Hatsudoki Kabushiki Kaisha · 1998
- Piston-cylinder aggregate with displacement-dependent dampening force field37US 5,971,117 AFichtel & Sachs AG · 1999
- Gas spring having a plurality of pressure chambers arranged one behind another31US 4,909,488 AStabilus GmbH · 1990
- Shock absorber26US 4,971,180 AToyota Jidosha Kabushiki Kaisha · 1990