F04B 11/0016
With a fluid spring
Official title: {with a fluid spring}
F04B11/0016 (With a fluid spring) appears on 168 US grants and 135 published applications in this corpus.
Search patents in F04B- Granted patents
- 168
- Published applications
- 135
- Assignees
- 112
- Inventors
- 341
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 9 | 0 |
| 2001 | 9 | 1 |
| 2002 | 6 | 0 |
| 2003 | 1 | 3 |
| 2004 | 2 | 6 |
| 2005 | 1 | 2 |
| 2006 | 2 | 2 |
| 2007 | 3 | 3 |
| 2008 | 2 | 3 |
| 2009 | 1 | 4 |
| 2010 | 2 | 1 |
| 2011 | 1 | 2 |
| 2012 | 1 | 3 |
| 2013 | 3 | 3 |
| 2014 | 3 | 7 |
| 2015 | 5 | 4 |
| 2016 | 1 | 5 |
| 2017 | 7 | 10 |
| 2018 | 4 | 16 |
| 2019 | 8 | 11 |
| 2020 | 8 | 8 |
| 2021 | 10 | 8 |
| 2022 | 8 | 11 |
| 2023 | 10 | 10 |
| 2024 | 9 | 5 |
| 2025 | 8 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pulsation dampener for single use applications19 May 2026US 12,631,167 B2Equilibar, LLC
- Fuel pump25 Nov 2025US 12,480,465 B2Hitachi Astemo, Ltd.
- Bilge system19 Aug 2025US 12,391,338 B2Seaflo Marine & RV North America, LLC
- Volume flow rate smoothing device12 Aug 2025US 12,386,370 B2Honeywell International Inc.
- Bilge pump housing20 May 2025US D1,075,848 S1Seaflo Marine & RV North America, LLC · Design
- Pulsation dampener for single use applications18 Jun 2026US 2026/0168482 A1Equilibar, LLC
- Streaming potential measurements by modulating pump flow rate or pressure19 Mar 2026US 2026/0078666 A1Esg Solutions Group, Inc.
- Flow cytometer15 Jan 2026US 2026/0016397 A1Beckman Coulter, Inc.
- Dampening element for fluid management system3 Jul 2025US 2025/0213774 A1Boston Scientific Scimed, Inc.
- Pulsation dampener for sanitary processes12 Jun 2025US 2025/0189065 A1Equilibar, LLC
Most cited
By later US patents
- Constant output fluidic system96US 6,767,188 B2Becton, Dickinson and Company · 2004
- Adaptive hydropneumatic pulsation damper52US 5,797,430 AMercedes-Benz AG · 1998
- Suction stabilizer for reciprocating pumps and stabilizing method50US 4,032,265 AUnited States Steel Corporation · 1977
- Manifold and methods of manufacturing same48US 9,441,776 B2S,P.M. Flow Control, Inc. · 2016
- Piston pump42US 6,341,950 B12002