F15B 3/00
Intensifiers or fluid-pressure converters
Official title: Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids {(fluid-driven pumps F04B9/08)}
F15B3/00 (Intensifiers or fluid-pressure converters) appears on 286 US grants and 246 published applications in this corpus.
Search patents in F15B- Granted patents
- 286
- Published applications
- 246
- Assignees
- 178
- Inventors
- 541
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 2 |
| 2002 | 3 | 3 |
| 2003 | 5 | 5 |
| 2004 | 6 | 5 |
| 2005 | 2 | 5 |
| 2006 | 6 | 6 |
| 2007 | 5 | 2 |
| 2008 | 3 | 6 |
| 2009 | 2 | 5 |
| 2010 | 4 | 3 |
| 2011 | 3 | 5 |
| 2012 | 1 | 8 |
| 2013 | 3 | 9 |
| 2014 | 7 | 12 |
| 2015 | 10 | 16 |
| 2016 | 7 | 18 |
| 2017 | 12 | 7 |
| 2018 | 16 | 22 |
| 2019 | 9 | 11 |
| 2020 | 19 | 22 |
| 2021 | 20 | 16 |
| 2022 | 13 | 8 |
| 2023 | 10 | 11 |
| 2024 | 8 | 17 |
| 2025 | 20 | 11 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for reducing wear in a reciprocating piston pump11 Aug 2026US 12,704,135 B2Spotton Corp.
- Pneumohydraulic pressure intensifier12 May 2026US 12,624,710 B2WS Wieländer + Schill Engineering GmbH & Co. KG
- Pressure multiplier31 Mar 2026US 12,590,593 B2Camozzi Automation S.P.A.
- Hydraulic power boosting system24 Feb 2026US 12,560,181 B2
- Hydraulic isolation cylinder-based system24 Feb 2026US 12,560,182 B1SRI Energy, Inc.
- Hydraulic System with Reservoir Surge Energy Recovery and Inlet Flow Supplement for Surface Engaging Machinery17 Sep 2026US 2026/0271819 A1Parker-Hannifin Corporation
- Hydraulic Isolation Cylinder-Based System6 Aug 2026US 2026/0226921 A1SRI Energy, Inc.
- Method and system for transferring hydraulic power between a pump and an actuator6 Aug 2026US 2026/0226926 A1Allu Innovation and Research Center Oy
- Fluid exchange devices and related controls, systems, and methods26 Mar 2026US 2026/0085704 A1Flowserve Pte. Ltd.
- Positioner and method for manufacturing a positioner19 Mar 2026US 2026/0078782 A1Samson Aktiengesellschaft
Most cited
By later US patents
- Pneumo-hydraulic converter for energy storage76US 6,145,311 A2000
- Accumulator for energy storage and delivery at multiple pressures71US 5,971,027 AWisconsin Alumni Research Foundation · 1999
- Fluid control circuit and method of operating pressure responsive equipment70US 4,955,195 AStewart & Stevenson Services, Inc. · 1990
- Hydraulic propulsion system61US 3,945,207 A1976
- Hydro or oleopneumatic devices58US 3,942,323 A1976