Class F04B : POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
Subclass 1/00: 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)
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11913437 | Pumping systems | Oct 24, 22 | Feb 27, 24 | QUANTUM SERVO PUMPING TECHNOLOGIES PTY LTD |
| 11867161 | Oil monitoring | Apr 01, 19 | Jan 09, 24 | SPM Oil & Gas Inc. |
| 11808252 | Liquid delivery device and liquid chromatograph | May 16, 18 | Nov 07, 23 | Shimadzu Corporation |
| 11795798 | Pumping system for a wellsite | Apr 08, 20 | Oct 24, 23 | SHALEPUMPS, LLC |
| 11753916 | Integrated fracking system | May 28, 20 | Sep 12, 23 | Stewart & Stevenson, LLC |
| 11668420 | System and method for integrated flow supply line | May 17, 21 | Jun 06, 23 | U.S. WELL SERVICES LLC |
| 11578580 | Electric powered hydraulic fracturing pump system with single electric powered multi-plunger pump fracturing trailers, filtration units, and slide out platform | Feb 08, 21 | Feb 14, 23 | U.S. WELL SERVICES LLC |
| 11530691 | Sealing ring assemblies configured for pressure locking | Sep 19, 19 | Dec 20, 22 | Mainspring Energy, Inc. |
| 11504711 | Fluidic apparatus and methods useful for chemical and biological reactions | Jun 30, 20 | Nov 22, 22 | Pacific Biosciences of California, Inc. |
| 11506198 | Pump with multiple outlets | Feb 25, 20 | Nov 22, 22 | Thomas Magnete GmbH |
| 11484645 | Systems and components for regulating fluid infusion to a patient | Nov 18, 21 | Nov 01, 22 | Perceptive Medical Inc. |
| 11448202 | Automated control of hydraulic fracturing pumps | Jan 23, 19 | Sep 20, 22 | Schlumberger Technology Corporation |
| 11421680 | Packing bore wear sleeve retainer system | Jun 30, 20 | Aug 23, 22 | VULCAN INDUSTRIAL HOLDINGS LLC |
| 11401930 | Method of manufacturing a fluid end block with integrated web portion | Jun 20, 19 | Aug 02, 22 | SPM Oil & Gas Inc. |
| 11384754 | Method and system of slow rate pumping | Jun 30, 21 | Jul 12, 22 | Not available |
| 11339768 | Cartridge accumulator | Feb 07, 20 | May 24, 22 | Flow Control LLC. |
| 11293416 | Precision fluid dispensing device | Sep 20, 18 | Apr 05, 22 | Hartmann's, Inc.; Duncanetics, LLC; |
| 11279336 | Electrohydraulic motor vehicle control device comprising a hydraulic unit comprising electric components for actuating an electric motor arranged on a second circuit board embodied redundantly in two parts wherein the two parts define at least a part of an opening through which a pressure source extends | Sep 19, 17 | Mar 22, 22 | Continental Teves AG & Co. OHG |
| 11280290 | Method for controlling a fuel pump for a motor vehicle | Sep 22, 17 | Mar 22, 22 | Continental Automotive France; CONTINENTAL AUTOMOTIVE GMBH; |
| 11264866 | Pump arrangement, axial-flow machine and compressor comprising at least one rotor having permanent magnets and a stator having a multiplicity of teeth separated from each other wherein the tooth tip has a substantially rectangular-shaped cross section | Dec 06, 18 | Mar 01, 22 | Miba Sinter Austria GmbH |
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2024/0125,320 | High-power five-cylinder drilling pump set, solid control system and drilling rig | Jan 25, 22 | Apr 18, 24 | Not available |
| 2024/0019,057 | SYSTEM AND METHOD FOR INTEGRATED FLOW SUPPLY LINE | Jun 06, 23 | Jan 18, 24 | U.S. WELL SERVICES LLC |
| 2023/0366,393 | BENT AXIS PLUNGER-TYPE VARIABLE HYDRAULIC MOTOR PUMP | Sep 16, 20 | Nov 16, 23 | BEIJING JODIN TECHNOLOGY CO. LTD |
| 2023/0072,947 | SEALING RING ASSEMBLIES CONFIGURED FOR PRESSURE LOCKING | Nov 16, 22 | Mar 09, 23 | Not available |
| 2023/0036,956 | FRACTURING PUMP ASSEMBLY | Aug 02, 21 | Feb 02, 23 | Not available |
| 2021/0231,111 | COMPRESSED GAS ENGINE | Jan 15, 21 | Jul 29, 21 | Not available |
| 2018/0230,977 | PUMP FLUID END WITH INTEGRATED WEB PORTION | Apr 13, 18 | Aug 16, 18 | Not available |
| 2016/0265,518 | System for coupling a piston for a hydraulic pump motor | Mar 08, 16 | Sep 15, 16 | Not available |
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