F04B 11/0008
Equalisation of pulses: using accumulators
Official title: {using accumulators}
F04B11/0008 (Equalisation of pulses: using accumulators) appears on 322 US grants and 275 published applications in this corpus.
Search patents in F04B- Granted patents
- 322
- Published applications
- 275
- Assignees
- 194
- Inventors
- 634
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 7 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 15 | 0 |
| 2001 | 10 | 1 |
| 2002 | 6 | 3 |
| 2003 | 3 | 5 |
| 2004 | 3 | 8 |
| 2005 | 3 | 6 |
| 2006 | 3 | 3 |
| 2007 | 3 | 3 |
| 2008 | 2 | 5 |
| 2009 | 1 | 9 |
| 2010 | 2 | 2 |
| 2011 | 1 | 5 |
| 2012 | 5 | 8 |
| 2013 | 6 | 11 |
| 2014 | 7 | 13 |
| 2015 | 8 | 12 |
| 2016 | 7 | 18 |
| 2017 | 18 | 20 |
| 2018 | 13 | 25 |
| 2019 | 16 | 19 |
| 2020 | 14 | 23 |
| 2021 | 21 | 18 |
| 2022 | 16 | 16 |
| 2023 | 20 | 17 |
| 2024 | 12 | 11 |
| 2025 | 12 | 8 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluidic methods and devices6 Oct 2026US 12,753,749 B2Obotics Inc.
- Accumulator for prevention of hydraulic pump cavitation21 Jul 2026US 12,687,156 B2The Boeing Company
- Method for controlling the delivery pressure of a supply pump9 Jun 2026US 12,650,122 B2Henkel AG & Co. KGaA
- Hydraulic pressure control unit19 May 2026US 12,630,131 B2Robert Bosch GmbH
- Pulsation dampener for single use applications19 May 2026US 12,631,167 B2Equilibar, LLC
- Double acting pump25 Jun 2026US 2026/0177042 A1Mhwirth AS
- Pulsation dampener for single use applications18 Jun 2026US 2026/0168482 A1Equilibar, LLC
- Minimizing recycle flow in pump operation9 Apr 2026US 2026/0098611 A1Integrated Cryogenic Solutions, LLC
- Streaming potential measurements by modulating pump flow rate or pressure19 Mar 2026US 2026/0078666 A1Esg Solutions Group, Inc.
- Accumulator for Prevention of Hydraulic Pump Cavitation19 Feb 2026US 2026/0049604 A1The Boeing Company
Most cited
By later US patents
- Ultra high pressure field end for a reciprocating pump147US 5,127,807 AHalliburton Company · 1992
- Constant output fluidic system96US 6,767,188 B2Becton, Dickinson and Company · 2004
- Proportioning pump72US 5,158,441 ABaxter International Inc. · 1992
- Exhaust coupling61US 11,326,586 B2Edwards Limited · 2022
- Pulseless liquid supply system for flow cytometry60US 5,915,925 A1999