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...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."

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Class 137/827 - By non-fluid energy field affecting input (e.g., transducer)


Subclass of Class 137 - Fluid handling
Definition: Device wherein said means causes the generation of force
No. of patents: 148
Last issue date: 10/18/2011


1        
NumberTitleIssue Date
8037902Fluid logic device
Novel fluid logic devices are disclosed. Certain examples of the fluid logic devices include two or more fluid logic gates that are each operative to select and/or direct analytes in a sample into one or more fluid flow channels in communication with the fluid logic...
10/18/2011
7819138Microfluidic device using centrifugal force and pump to control fluid movement, microfluidic system comprising the same and method of manufacturing the microfluidic device
The microfluidic device includes a rotatable platform, a plurality of connection ports disposed at a portion of the platform proximate to a shaft connection hole, the plurality of connection ports capable of being connected to an external connector for selectively i...
10/26/2010
7699077Transport system for nanoparticles and method for the operation thereof
A transport system for dry nanoparticles (18b). According to the invention, the nanoparticles (18b) are magnetized or electrically charged for transportation, a magnetic or electrical field is produced by a field generator (20a,...
04/20/2010
7537028Device for fluid processor and its fluid flow path setting device, fluid processor, and fluid processing method
A device for fluid processor comprises a plate-shaped base material, a micro conduit network formed in the base material and formed of a first micro conduit and second micro conduits intersecting with the first micro conduit, a valve provided in each of conduit port...
05/26/2009
7431050Liquid delivery device
A fluid delivery device is provided which comprises a microchannel device for cutting out a certain amount of a sample from a micorochannel by controlling a valve opening. The fluid delivery device has a valve for controlling a flow of a fluid, comprising a flow cha...
10/07/2008
7357862Fluid conditioning system and method
An exemplary method and system for reducing or eliminating the formation of solid precipitates/deposits of a flowing fluid, such as oil, or for reducing or eliminating existing solid precipitates/deposits contained in a flowing fluid, is provided. A fluid conditioni...
04/15/2008
7351303Microfluidic systems and components
Microfluidic systems and components. A microfluidic system includes one or more functional units or microfluidic chips, configured to perform constituent steps in a process and interconnected to form the system. A multi-layer microfluidic system includes a separate ...
04/01/2008
7347617Mixing in microfluidic devices
Mixing of liquids in a microfluidic device is accomplished by dispensing the liquids into a first chamber to produce combined liquid. The liquids are thereafter discharged through at least one capillary from the first chamber into a second chamber for complete mixin...
03/25/2008
7329545Methods for sampling a liquid flow
In a method for sampling a continuous liquid flow, the liquid flow is supplied to a surface along an input flow path. The liquid flow is sampled by forming a sample droplet from a portion of the liquid flow. The sample droplet is moved along an analysis flow path to...
02/12/2008
7318912Microfluidic systems and methods for combining discrete fluid volumes
Microfluidic devices capable of combining discrete fluid volumes generally include channels for supplying different fluids toward a sample chamber and means for establishing fluid communication between the fluids within the chamber. Discrete fluid plugs are defined ...
01/15/2008
7314718Method and apparatus for maintaining multiple planar fluid flows
The present invention provides a method of performing analyses and assays involving multiple interactions of reagent-containing fluid flows with liquid and solid target substances. The methods of the invention allow the simultaneous manipulation of different fluids ...
01/01/2008
7312611Apparatus and method for trapping bead based reagents within microfluidic analysis systems
The present invention provides an on-chip packed reactor bed design that allows for an effective exchange of packing materials such as beads at a miniaturized level. In accordance with the present invention, there is provided a method of concentrating an analyte wit...
12/25/2007
7311881Chips, and apparatus and method for reaction analysis
A chip having a deaerating function and requiring no bonding or welding for forming a channel, and an apparatus and method for the reaction analysis are provided. The chip contains a first substrate, a second substrate having a liquid inlet and a liquid outlet, and ...
12/25/2007
7302970Liquid delivery device
A micro liquid delivery device includes a flow channel for flowing a liquid, at least two pressure-generators for generating pressures provided in the flow channel, and a variable member placed between the pressure-generators and capable of transforming between a fi...
12/04/2007
7300260Special fluids for use in a hydrostatic transmission
A positive displacement piston unit is provided that utilizes a magnetorheological (MR) or electrorheological (ER) fluid as the transmission fluid. Each cylinder of the invention has an intake port connected to the suction port of the hydrostatic pump and an output ...
11/27/2007
7285411High throughput screening assay systems in microscale fluidic devices
The present invention provides novel microfluidic devices and methods that are useful for performing high-throughput screening assays. In particular, the devices and methods of the invention are useful in screening large numbers of different compounds for their effe...
10/23/2007
7282705Microdevice having an annular lining for producing an electrospray emitter
A microdevice is constructed from a substrate having a microchannel formed therein and a cover plate arranged over the substrate. The cover plate in combination with the microchannel at least partially defines a conduit within the microdevice. The conduit has a surf...
10/16/2007
7258837Microfluidic device and surface decoration process for solid phase affinity binding assays
This invention provides a microfluidic device for use in the detection of one or more analytes in a fluid using solid-phase affinity binding assays. The device offers a practical, easy-to-use, portable, inexpensive, robust analytical system for the parallel and quan...
08/21/2007
7258777Bridges for electroosmotic flow systems
In accordance with the present invention, stable electroosmotic flow systems and methods for designing the same are disclosed. The invention provides electroosmotic flow systems comprising electroosmotic flow elements, including bridge elements, that have matching f...
08/21/2007
7247274Prevention of precipitate blockage in microfluidic channels
The present invention provides novel microfluidic devices and methods for preventing/ameliorating formation of precipitate blockages in microfluidic devices. In particular the devices and methods of the invention utilize microchannels of specific cross-sectional con...
07/24/2007
7243670Microfluidic system
A microfluidic system, particularly a microfluidic chip, with at least one operational channel, in which a fluid and/or the constituents contained therein are moveable in the direction of the operational channel by a driving force, particularly by using pressure, ac...
07/17/2007
7235400Laminated microarray interface device
A device for forming a low volume reaction chamber on a substrate such as a microarray slide and its method of use is disclosed. The reaction chamber forming device has an adhesive laminate design that permits it to be manufactured as a disposable device. A preferre...
06/26/2007
7226562Liquid analysis cartridge
The present invention provides an apparatus and method for storing a particle-containing liquid. The storage apparatus comprises a microfluidic convoluted flow channel having a plurality of particle capture regions. The storage channel is preferably an isotropic spa...
06/05/2007
7223363Method and system for microfluidic interfacing to arrays
A method and system for providing a fluidic interface to slides bearing microarrays of biomolecules or other samples immobilized thereon to perform a variety of chemical reactions or processing steps on the slide. An interface device seals against the slide to form ...
05/29/2007
7223371Microfluidic channel network device
Described herein is microfluidic device for joining fluids and a related method for doing the same. The device according to the present invention includes a microfluidic junction, an outlet channel, and a plurality of circuit units. A microfluidic junction is an are...
05/29/2007
7219752System and method for damping vibration in a drill string
A system for damping vibration in a drill string can include a valve assembly having a supply of a fluid, a first member, and a second member capable of moving in relation to first member in response to vibration of the drill bit. The first and second members define...
05/22/2007
7217542Microfluidic system for analyzing nucleic acids
A system, including methods and apparatus, for microfluidic analysis of a nucleic acid target in a nucleic acid mixture. The system includes a method to preselect the target from the mixture before amplification. Preselection enriches the mixture for the target by r...
05/15/2007
7204581Magnetic actuator using ferrofluid slug
A magnetostatic actuator uses a ferrofluid slug confined in a cylindrical tube which is wrapped in a conducting coil. By applying a current to the coil, a magnetic field is generated inside the coil. The ferrofluid slug may be attracted to the interior of the coil b...
04/17/2007
7201873Fine channel device, method for producing the fine channel device and use of the same
A device includes a first substrate having a channel formed on front and rear surfaces of the first substrate, and an information recording layer forming an optical recording medium on at least one of the front and rear surfaces of the first substrate. ...
04/10/2007
7192559Methods and devices for high throughput fluid delivery
Methods and devices for delivering fluids into microfluidic device body structures are described. The methods and devices include the use of fluid manifolds which are integrated or interchangeable with device body structures. Methods of fabricating manifolds are als...
03/20/2007
7189578Methods and systems employing electrothermally induced flow for mixing and cleaning in microsystems
A method and system for controlling flow motion in a channel/cavity in a microfluidic system includes positioning at least one pair of electrodes in and/or proximate to the channel/cavity. A buffer solution is placed in the channel/cavity, the buffer solution having...
03/13/2007
7189370Apparatus and methods for high throughput and high-resolution assays
An apparatus integrates one dimensional separation to another dimensional separation and automates the operation of the two dimensional separation. The first dimensional separation is performed in one column while the second dimensional separation is performed in mu...
03/13/2007
7179423Microfluidic system including a virtual wall fluid interface port for interfacing fluids with the microfluidic system
A fluid interface port in a microfluidic system and a method of forming the fluid interface port is provided. The fluid interface port comprises an opening formed in the side wall of a microchannel sized and dimensioned to form a virtual wall when the microchannel i...
02/20/2007
7171983Multi-reservoir pressure control system
Improved microfluidic devices, systems, and methods allow selective transportation of fluids within microfluidic channels of a microfluidic network by applying, controlling, and varying pressures at a plurality of reservoirs. Modeling the microfluidic network as a s...
02/06/2007
7171975Fabrication of ultra-shallow channels for microfluidic devices and systems
A method for etching an ultra-shallow channel includes using an etch process that is selective for one material to etch a different material in order to achieve a very precise channel depth in the different material. Channels as shallow as 10 nm can be fabricated in...
02/06/2007
7165566Method of forming a microstructure using maskless lithography
A method is provided for fabricating a microstructure using maskless lithography. A first layer is provided in a spaced relationship to a base layer so as to define a construction cavity therebetween. The first layer has a passageway therethrough that communicates w...
01/23/2007
7160423Mixed mode microfluidic systems
Methods and systems that employ hybrid fluid flow profiles for optimized movement of materials through channel networks. These systems employ hybrid pressure-based and electrokinetic based flow systems for moving materials through interconnected channel networks whi...
01/09/2007
7156117Method of controlling the movement of fluid through a microfluidic circuit using an array of triggerable passive valves
The present invention is directed to methods of controlling the flow of fluids through a microfluidic circuit and, more particularly, to methods of controlling the movement of fluid through a microfluidic circuit using one or more triggerable passive valves. In one ...
01/02/2007
7157274Method and apparatus for sorting particles
A method and apparatus for sorting particles moving through a closed channel system of capillary size comprises a bubble valve for selectively generating a pressure pulse to separate a particle having a predetermined characteristic from a stream of particles. The pa...
01/02/2007
7134453Microfluidic switch for stopping a liquid flow during a time interval
The invention relates to a microfluidic switch for stopping a liquid flow during a time interval with the following features: the switch has at least one first channel and at least one second channel; the first channel and the second channel have a common end area; ...
11/14/2006
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