F04F 7/02
Hydraulic rams
F04F7/02 (Hydraulic rams) appears on 28 US grants and 16 published applications in this corpus.
Search patents in F04F- Granted patents
- 28
- Published applications
- 16
- Assignees
- 11
- Inventors
- 34
- Latest grant
- 14 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 3 |
| 2015 | 1 | 0 |
| 2016 | 2 | 0 |
| 2017 | 1 | 1 |
| 2018 | 2 | 0 |
| 2019 | 2 | 2 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pumping system and fluid delivery installation14 Nov 2023US 11,815,089 B2
- Suction pumps30 Mar 2021US 10,962,027 B2Thermofluidics Ltd.
- Systems and methods for supplying reduced pressure using a disc pump with electrostatic actuation10 Dec 2019US 10,502,199 B2KCI Licensing, Inc.
- Systems and methods for supplying reduced pressure using a disc pump with electrostatic actuation21 May 2019US 10,294,933 B2KCI Licensing, Inc.
- Hydraulic ram liquid suction pump apparatus and methods26 Jun 2018US 10,006,448 B2Thermofluidics Ltd.
- Electronic ram pump controller15 Feb 2024US 2024/0052856 A1
- Pumping system and fluid delivery installation21 Apr 2022US 2022/0120260 A1
- Systems and methods for supplying reduced pressure using a disc pump with electrostatic actuation5 Mar 2020US 2020/0072211 A1KCI Licensing, Inc.
- Systems and methods for supplying reduced pressure using a disc pump with electrostatic actuation25 Jul 2019US 2019/0226470 A1KCI Licensing, Inc.
- Suction Pumps27 Jun 2019US 2019/0195244 A1Thermofluidics Ltd.
Most cited
By later US patents
- Method and apparatus for making a demountable x-ray tube15US 5,898,754 AX-Ray and Specialty Instruments, Inc. · 1999
- Energy regenerative apparatus for a water hammer type pump11US 4,930,993 A1990
- Hydraulic ram valve unit9US 4,054,399 A1977
- Reciprocating engine8US 5,613,420 AGlockemann Peck Engineering Pty Ltd. · 1997
- Vapor-powered kinetic pump7US 7,021,900 B22006