| Patents for F04B 19 - Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups (2,867) |
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| 02/01/2000 | US6019882 Electrokinetic high pressure hydraulic system |
| 01/11/2000 | US6013164 Electokinetic high pressure hydraulic system |
| 01/11/2000 | US6012902 Micropump |
| 01/04/2000 | US6010316 Acoustic micropump |
| 12/30/1999 | DE19826426A1 Manufacture of positive, gas-tight, conductive connection between solderable, unencapsulated semiconductor chip and encased metallized support |
| 12/28/1999 | US6007302 Mechanical valve having n-type and p-type thermoelectric elements for heating and cooling a fluid between an inlet and an outlet in a fluid pump |
| 12/08/1999 | EP0961655A1 Microdosing device and method for operating same |
| 12/08/1999 | EP0961652A1 Laminated assembly for active bioelectronic devices |
| 12/08/1999 | CN2352716Y Force increased pump |
| 12/07/1999 | US5997263 Micromachined filter for a micropump |
| 12/02/1999 | WO1999050524A3 Subsea mud pump |
| 11/30/1999 | US5992222 High pressure pump system and method of operation thereof |
| 11/16/1999 | US5985119 Electrokinetic pumping |
| 11/16/1999 | US5983416 Electrically powdered spa jet unit |
| 11/09/1999 | US5980704 Method and system for inhibiting cross-contamination in fluids of combinatorial chemistry device |
| 11/04/1999 | WO1999055283A1 Electrically powered spa jet unit |
| 11/03/1999 | CN2346952Y Two-cylinder plunger pump |
| 11/02/1999 | US5975856 Method of pumping a fluid through a micromechanical valve having N-type and P-type thermoelectric elements for heating and cooling a fluid between an inlet and an outlet |
| 10/27/1999 | EP0883442A4 Electrokinetic pumping |
| 10/26/1999 | US5972187 Intersecting capillary channels arranged so that a sample fluid being transported along the first channel towards the second channel is mixed at intersection and bias in the fluid is dissipated |
| 10/20/1999 | CN1232527A Fluid displacement system |
| 10/12/1999 | US5964997 Balanced asymmetric electronic pulse patterns for operating electrode-based pumps |
| 10/07/1999 | WO1999050524A2 Subsea mud pump |
| 10/07/1999 | CA2326353A1 Subsea mud pump |
| 10/05/1999 | US5961800 Indirect electrode-based pumps |
| 10/05/1999 | US5961298 Traveling wave pump employing electroactive actuators |
| 09/30/1999 | WO1999049173A1 Rotating subsea diverter |
| 09/30/1999 | WO1999049172A1 Offshore drilling system |
| 09/30/1999 | CA2326358A1 Rotating subsea diverter |
| 09/30/1999 | CA2326129A1 Offshore drilling system |
| 09/28/1999 | US5958203 Microfluidic system comprising substrate having two intersecting channels of different depths and an electroosmotic fluid direction system |
| 09/23/1999 | DE19802367C1 Mikrodosiervorrichtungsarray und Verfahren zum Betreiben desselben Microdosing and method of operating the same |
| 09/15/1999 | CN1228841A Electropipettor and compensation means for electrophoretic bias |
| 09/08/1999 | EP0681654B1 Sealless rotodynamic pump |
| 09/01/1999 | CN2336107Y 活塞泵 Piston pump |
| 08/10/1999 | CA2159633C Cryogenic fluid pump and tank apparatus and method |
| 08/05/1999 | DE19802368C1 Mikrodosiervorrichtung Microdosing |
| 07/29/1999 | WO1999037400A1 Microdosing device |
| 07/21/1999 | EP0929744A2 Fluid displacement system |
| 07/13/1999 | US5921759 Liquid metering piston pump and valves capable of being cleaned and sterilized without disassembly |
| 07/08/1999 | WO1999034115A1 Pump |
| 06/29/1999 | US5915929 Low power electromagnetic pump |
| 06/15/1999 | CA2089035C Pressure testing pump |
| 05/26/1999 | EP0760059A4 Low power electromagnetic pump |
| 05/20/1999 | WO1999024744A1 Micromachined parylene membrane valve and pump |
| 05/12/1999 | CN1216596A Progressive cavity pump using composite materials |
| 05/05/1999 | CN2317336Y Box-type low noise oil-free lubricating air compressor |
| 04/28/1999 | CN2316484Y 农用往复泵 Farm reciprocating pump |
| 04/27/1999 | CA2145857C Sealless rotodynamic pump |
| 04/22/1999 | DE19746428A1 Pressure generator with hydraulic pump for utility vehicles |
| 04/21/1999 | EP0909385A1 Electropipettor and compensation means for electrophoretic bias |
| 04/14/1999 | EP0671980B1 Dispensing device |
| 04/14/1999 | CN2314125Y Miniature D. C. pump |
| 04/06/1999 | US5890415 Liquid pump |
| 04/01/1999 | WO1999016162A1 Micropump |
| 03/30/1999 | US5888050 Precision high pressure control assembly |
| 03/30/1999 | US5887507 Plunger pump |
| 03/24/1999 | CN2311631Y 自动水泵 Automatic Pump |
| 03/16/1999 | US5881801 Thermally driven liquid pressure generating apparatus |
| 03/10/1999 | CN1210576A Micromachined filter for micropump |
| 03/09/1999 | US5880071 Transporting materials using electrokinetic forces through the channels of a microfluidic system |
| 03/09/1999 | US5879375 Implantable device monitoring arrangement and method |
| 03/09/1999 | CA2141612C Improvement to membrane type deaerator |
| 02/17/1999 | CN2307924Y Improved silencer for refrigerator compressor |
| 02/16/1999 | US5871336 For analyzing a sample fluid |
| 02/03/1999 | EP0894195A1 Progressive cavity pumps using composite materials |
| 01/28/1999 | WO1999004140A1 Volumetric-displacement device having molded pistons and cylinders |
| 01/20/1999 | CN2304761Y Low noise and faultless hydraulic pump structure |
| 01/12/1999 | US5858193 Electrokinetic pumping |
| 12/23/1998 | EP0869850A4 Method of producing micro-electrical conduits |
| 12/16/1998 | EP0883442A1 Electrokinetic pumping |
| 12/09/1998 | EP0882890A2 A liquid carrying method, a liquid carrying apparatus, and a liquid discharging method and a liquid discharge head utilizing such liquid carrying method and apparatus |
| 12/08/1998 | US5846396 Liquid distribution system |
| 12/01/1998 | US5843129 Electrical circuit for equipment requiring redundant flow paths and method of use |
| 11/25/1998 | EP0879357A1 Micromachined filter for a micropump |
| 11/24/1998 | US5842106 Method of producing micro-electrical conduits |
| 11/19/1998 | WO1998052034A1 Thermal expansion pump for pulse-free liquid flow |
| 11/19/1998 | WO1998051999A1 Electrohydrodynamic pump print array |
| 11/12/1998 | WO1998050787A1 Indirect electrode-based pumps |
| 11/04/1998 | CN2296412Y Combined micro water pump |
| 11/04/1998 | CN2296411Y Air pressure controller for inflator of air cushion bed |
| 10/28/1998 | CN2295855Y Pneumatic reciprocal liquid filling pump |
| 10/14/1998 | EP0870110A2 Multichannel microdosing apparatus |
| 10/14/1998 | EP0869850A1 Method of producing micro-electrical conduits |
| 10/14/1998 | CN2294340Y Hand operated delivery of liquid |
| 10/13/1998 | US5820356 For use in a motor vehicle |
| 10/08/1998 | DE19801714A1 Low pressure compressor for gaseous media, especially ambient air |
| 10/01/1998 | WO1998042981A1 Wind and solar energy installation |
| 09/30/1998 | CN2292911Y High-effeciency wear-resistant sludge pump |
| 09/29/1998 | US5813839 Gas driven external combustion heat engine pump having the outlet pipe connected to a variable buoyant float |
| 09/24/1998 | WO1998044262A1 Operating mode of a jet blower |
| 09/23/1998 | CN1193927A Electrokinetic pumping |
| 09/02/1998 | EP0791238A4 Liquid distribution system |
| 08/27/1998 | WO1998036832A1 Microdosing device and method for operating same |
| 08/26/1998 | CN2289073Y 加热螺杆泵 Heating screw |
| 08/26/1998 | CN2289072Y Wear-resisting erosion-resisting pump for high viscosity sand-containing crude oil mixing transportation |
| 08/26/1998 | CN2289071Y Medical combined variable frequency compressed air engine set |
| 08/26/1998 | CN2289070Y Adjustable jet-flow proportioning pump |
| 08/25/1998 | US5797733 Low power electromagnetic pump |
| 08/25/1998 | US5797719 Precision high pressure control assembly |