Class F04B : POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
Subclass 1/04: Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (F04B 3/00 takes precedence; fluid-driven pumps F04B 9/08; control of reciprocating machines or pumps in general F04B 49/00) having cylinders in star- or fan-arrangement
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12163206 | Aluminum alloy | Oct 29, 18 | Dec 10, 24 | FNA Group, Inc. |
| 12158143 | Power end frame with residual compressive stress and methods | Apr 30, 20 | Dec 03, 24 | Caterpillar Inc. |
| 12055124 | Four-quadrant radial piston hydraulic device and working method thereof | Mar 26, 24 | Aug 06, 24 | HUAQIAO UNIVERSITY |
| 11867045 | Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods | Sep 01, 22 | Jan 09, 24 | BJ Energy Solutions, LLC |
| 11732563 | Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods | Nov 17, 22 | Aug 22, 23 | BJ Energy Solutions, LLC |
| 11661937 | Method and device for determining a wear condition in a hydrostatic pump | Nov 08, 18 | May 30, 23 | Moog GmbH |
| 11441549 | Controller for hydraulic pump | Sep 23, 15 | Sep 13, 22 | DANFOSS POWER SOLUTIONS GMBH & CO OHG; Artemis Intelligent Power Ltd.; |
| 11415119 | Hydraulic pump | May 16, 18 | Aug 16, 22 | Enerpac Tool Group Corp. |
| 11022153 | Hydraulic apparatus comprising synthetically commutated machine, and operating method | Jan 13, 17 | Jun 01, 21 | Artemis Intelligent Power Limited |
| 10989306 | Packing stack carrier for paint and other fluid pumps | Mar 13, 19 | Apr 27, 21 | Graco Minnesota Inc. |
| 10947962 | Low disturbance cryocooler compressor | Oct 05, 18 | Mar 16, 21 | Lockheed Martin Corporation |
| 10851750 | Electromagnetically actuatable inlet valve and high-pressure pump having an inlet valve | Oct 31, 16 | Dec 01, 20 | Robert Bosch GmbH |
| 10760292 | Motor can seal and shaft | Nov 07, 17 | Sep 01, 20 | Not available |
| 10690109 | Distribution device for a hydraulic machine and a hydraulic machine fitted with such a device | Nov 01, 16 | Jun 23, 20 | Poclain Hydraulics Industrie |
| 10683854 | Radial piston device with reduced pressure drop | May 19, 16 | Jun 16, 20 | Eaton Intelligent Power Limited |
| 10655613 | High-pressure pump control unit | Oct 18, 16 | May 19, 20 | DENSO Corporation |
| 10590897 | High-pressure fuel supply pump, manufacturing method thereof, and method of bonding two members | Oct 05, 16 | Mar 17, 20 | Hitachi Automotive Systems, Ltd. |
| 10584698 | Pump assembly health assessment | Apr 07, 16 | Mar 10, 20 | Schlumberger Technology Corporation |
| 10584700 | High-pressure fuel pump | Jun 05, 14 | Mar 10, 20 | c/o TOYOTA JIDOSHA KABUSHIKI KAISHA |
| 10519911 | Common rail multi-cylinder fuel pump with independent pumping plunger extension | May 14, 15 | Dec 31, 19 | Cummins Inc. |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0044,235 | HYDRAULIC FRACTURING PUMPS TO ENHANCE FLOW OF FRACTURING FLUID INTO WELLHEADS AND RELATED METHODS | Oct 16, 23 | Feb 08, 24 | BJ Energy Solutions, LLC |
| 2023/0039,274 | HYDRAULIC PUMP | Aug 16, 22 | Feb 09, 23 | Not available |
| 2019/0277,246 | ROTARY HYDRAULIC MACHINE | Mar 11, 19 | Sep 12, 19 | Not available |
| 2018/0245,573 | Hydraulic Control Apparatus and Brake System | Aug 02, 16 | Aug 30, 18 | HITACHI AUTOMOTIVE SYSTEMS, LTD. |
| 2018/0202,421 | RADIAL PISTON PUMPS AND MOTORS | Jul 15, 16 | Jul 19, 18 | DOMIN FLUID POWER LIMITED |
| 2018/0017,046 | BOX LUBRICATION PUMP | Sep 27, 17 | Jan 18, 18 | GRACO MINNESOTA INC. |
| 2015/0118,066 | LOAD REDUCTION | Apr 23, 13 | Apr 30, 15 | DELPHI INTERNATIONAL OPERATIONS LUXEMBOURG S.A.R.L. |
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