Class F04B : POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
Subclass 1/047: 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 with an actuating or actuated element at the outer ends of the cylinders
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12215678 | Flushing circuit for a hydraulic machine | May 09, 22 | Feb 04, 25 | Poclain Hydraulics Industrie |
| 12196186 | Turbine and multi piston pump | Dec 17, 20 | Jan 14, 25 | DELFT OFFSHORE TURBINE B.V. |
| 12044234 | Cover, fluid end and plunger pump | Jun 22, 22 | Jul 23, 24 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. |
| 12025111 | Hydraulic machine comprising an improved bearing | Mar 26, 20 | Jul 02, 24 | PORCLAIN HYDRAULICS INDUSTRIE |
| 11815075 | Pumps | Sep 06, 18 | Nov 14, 23 | Cytiva Sweden AB |
| 11767830 | Hydraulic system | Apr 03, 19 | Sep 26, 23 | HAWE Altenstadt Holding GmbH |
| 11746765 | Micro piston pump | Feb 08, 22 | Sep 05, 23 | INSULET CORPORATION |
| 11280327 | Micro piston pump | Aug 03, 18 | Mar 22, 22 | INSULET CORPORATION |
| 11136976 | Hydraulic machine including an improved braking system | Oct 30, 18 | Oct 05, 21 | Poclain Hydraulics Industrie |
| 11067144 | Braking system for a hydraulic machine | Jul 12, 17 | Jul 20, 21 | Poclain Hydraulics Industrie |
| 11067066 | Harmonic distribution radial piston hydraulic machine | Jul 01, 16 | Jul 20, 21 | Poclain Hydraulics Industrie |
| 10995739 | Fluid working machine having first and second valve cylinder devices in fluid communication with each other via a common conduit | May 27, 14 | May 04, 21 | DANFOSS POWER SOLUTIONS GMBH & CO OHG; Artemis Intelligent Power Ltd.; |
| 10947962 | Low disturbance cryocooler compressor | Oct 05, 18 | Mar 16, 21 | Lockheed Martin Corporation |
| 10677058 | Fluid working machine having offset valve cylinders | May 27, 14 | Jun 09, 20 | DANFOSS POWER SOLUTIONS GMBH & CO OHG; Artemis Intelligent Power Ltd.; |
| 10605079 | Fluid working machine having offset valve cylinders | May 27, 14 | Mar 31, 20 | DANFOSS POWER SOLUTIONS GMBH & CO OHG; Artemis Intelligent Power Ltd.; |
| 10578084 | Hydraulic device with radial pistons comprising at least one ball bearing | Dec 17, 15 | Mar 03, 20 | Poclain Hydraulics Industrie |
| 10563641 | Distribution device for hydraulic machine | Jul 28, 15 | Feb 18, 20 | Poclain Hydraulics Industrie |
| 10443582 | Distribution casing device for a hydraulic machine | Jul 30, 15 | Oct 15, 19 | Poclain Hydraulics Industrie |
| 10378357 | Hydraulic radial piston device with improved pressure transition mechanism | Jan 14, 16 | Aug 13, 19 | Eaton Intelligent Power Limited |
| 10364792 | Braking system for a hydraulic machine | Sep 22, 17 | Jul 30, 19 | Poclain Hydraulics Industrie |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0092,854 | BEARING ARRANGEMENT FOR RADIAL PISTON UNITS | Dec 16, 21 | Mar 20, 25 | Not available |
| 2024/0309,839 | BEARING ARRANGEMENT FOR RADIAL PISTON UNITS | Dec 16, 21 | Sep 19, 24 | Not available |
| 2024/0018,952 | In and Relating to Pumps | Sep 12, 23 | Jan 18, 24 | Not available |
| 2023/0175,496 | HYDRAULIC MACHINE COMPRISING BEARINGS FOR SUPPORTING THE ROTATING COMPONENT | Jun 08, 21 | Jun 08, 23 | Not available |
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