Class 204/550 - Ionophoresis

Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Process which involves the separation or removal of ions
No. of patents: 26
Last issue date: 05/06/2008

Number	Title	Issue Date
7368191	Electrode array for use in electrochemical cells The invention features an electrode array (7) in which pairs of electrodes (1) are geometrically arranged so that the broadest faces of the exposed electrodes are not directly opposing to each other. Rather, the broadest facing surfaces of the electrod...	05/06/2008
7206189	Composite electrode and current collectors and processes for making the same Composite electrode/current collectors for capacitors, e.g., a flow-through capacitor or electric double layer capacitor are disclosed. Also disclosed are methods for making a composite electrode/current collectors and capacitors having at least one composite electr...	04/17/2007
7016462	Ionic pre-concentration XRF identification and analysis device, system and method A device, system and method for detecting and measuring concentrations of elements in fluids comprises: flowing a fluid through a central flow interelectrode gap of an ionic preconcentration cell separating an upper high specific surface area electrode from a lower ...	03/21/2006
RE38681	Electrode with improved signal to noise ratio An electrode assembly for sensing an electrochemical signal diffused from a source to a working electrode which is comprised of a plurality of substantially separated working electrode surfaces is disclosed. The electrode of the invention is comprised of 1) a workin...	01/04/2005
6409698	Perforate electrodiffusion pump An electrodiffusion pump includes a housing having an inlet, drug reservoir, and outlet. A diffusion membrane is disposed between the reservoir and outlet for diffusing the drug outwardly therethrough. Internal and external electrodes are disposed on oppo...	06/25/2002
6284126	Electrode with improved signal to noise ratio An electrode assembly for sensing an electrochemical signal diffused from a source to a working electrode which is comprised of a plurality of substantially separated working electrode surfaces is disclosed. The electrode of the invention is comprised of ...	09/04/2001
5633171	Intermittent electrolytic packed bed suppressor regeneration for ion chromatography A method and apparatus for ion analysis by ion chromatography uses periodic electrolytic regeneration of a packed bed suppressor. First and second sets of columns, suppressors and detectors connected in series are linked by appropriate valving so that the...	05/27/1997
5620580	Iontophoresis device To avoid a reduction of the conductivity in iontophoresis due to the electrical decomposition and the changes in chemical properties of the electrodes themselves, covering by an electrical insulator, and to prevent a drop in the transport rate due to ions...	04/15/1997
5582701	Ionic liquid-channel charge-coupled device An ionic liquid-channel charge-coupled device that separates ions in a liquid sample according to ion mobility characteristics includes a channel having an inner wall that has a matrix liquid disposed within. An insulating material surrounds the channel, ...	12/10/1996
5538611	Planar, flow-through, electric, double-layer capacitor and a method of treating liquids with the capacitor The object of the invention is to provide a flow-through, electric, double-layer capacitor providing for a high, steady rate of removal of ionic substances and amenable to commercial scale application and a method of treating fluids using the flow-through...	07/23/1996
5531871	Molecular complexes for use as electrolyte components An molecular complex is provided which includes a linear polymer associated with a cyclic molecule to form a rotaxane of the general formula, ##STR1## where R1 and R2 are blocking end groups of size and character sufficient to p...	07/02/1996
5425858	Method and apparatus for capacitive deionization, electrochemical purification, and regeneration of electrodes An electrochemical cell for capacitive deionization and electrochemical purification and regeneration of electrodes includes two oppositely disposed, spaced-apart end plates, one at each end of the cell. Two generally identical single-sided end electrodes...	06/20/1995
5370775	Formation of chemically reduced electrode layers Processes for forming stable electrodes for use in electrochromic devices are disclosed including a stable electrode, a second electrode, and an ion-conducting layer therebetween, the processes include placing the stable electrode in an ion-conducting sol...	12/06/1994
5320731	Iontophoresis device for transcutaneous administration of a given total quantity of an active principle to a subject The iontophoresis device for transcutaneous administration of the active principle to the subject comprises electrodes, at least one of which is a consumable electrode formed of an electrochemically consumable material associated either with an insulating...	06/14/1994
5306412	Method and apparatus for improving electrospray ionization of solute species The subject invention teaches the use of mechanical vibration to enhance the electrostatic dispersion of sample solutions into the small, highly charged droplets that can produce ions of solute species for mass spectrometric analysis. Such vibration turns...	04/26/1994
5296120	Apparatus for the removal of chloride from reinforced concrete structures The present invention resides in an apparatus for removing chloride ions from a reinforced concrete structure. The apparatus comprises an integrated anode assembly which includes an anode and an electrolyte, the anode being immersed in the electrolyte. Th...	03/22/1994
5256264	Process and apparatus for the in-situ decontamination of ground water containing heavy metals A process and apparatus for the in-situ decontamination of ground water polluted with heavy metal ions, wherein a ground water peak (26) is built up by means of gasification (24) in a well pipe (10), and a current is produced in the ground water. The curr...	10/26/1993
4941958	Device and method for detecting ionic components in solution A device and method for sensing analyte ionic components are described. The device includes at least one detecting element including a first end, a second end, a first ion exchange medium extending from the first end to the second end, and a second ion ex...	07/17/1990
4886587	Method of producing thin film optical element by ion injection under electric field The thin film optical element comprises a substrate, a thin film light guide formed by ion injection into the surface of the substrate, an optical functional part formed in a part of the light guide for varying the refractive index thereof by an external ...	12/12/1989
4689126	Method of converting a precursor ceramic solid into a solid ceramic hydronium conductor A method of converting a feed solid polycrystalline of ଲ alumina into a hydronium conductor requires the preselection of an appropriate feed ceramic preferably with a chemical formula; and with a f(ଲ) of 0.37&#b1;0.03 wherein ##EQU1## The...	08/25/1987
4479857	Method and apparatus for radon control A method of reducing the emanation of radon gas from radium in mine rock faces. Also disclosed is apparatus employing an anode in electrical contact with the mine rock face in a water-bearing formation and a cathode remote therefrom in the water-bearing f...	10/30/1984
4392928	Method of doping a semiconductor A method for doping semiconductor material. An interface is established between a solid electrolyte and a semiconductor to be doped. The electrolyte is chosen to be an ionic conductor of the selected impurity and the semiconductor material and electrolyte...	07/12/1983
4305798	Method of preparative, Kohlrausch-regulated electrophoresis using polyethylene glycol derivatized trailing ions An improved method of Kohlrausch-regulated electrophoresis (isotachophoresis) is disclosed for the preparative separation of respective macromolecular components such as proteins in a crude sample. The preferred method involves use of a substantially line...	12/15/1981
4290855	Method of isotope enrichment Method and apparatus for separation of isotopes is provided which utilizes a novel combination of electrophoresis, a flowing carrier fluid and a separation chamber with varying separation characteristics. By selecting the appropriate voltage, flow rate an...	09/22/1981
4032418	Method of introducing impurities into a semiconductor A method of manufacturing a p-n, n+-n or p+-p junction in a semiconducting material, introducing into said material ions of an impurity material by exposing a surface of said semiconductor to a liquid containing ions of said impurity...	06/28/1977
3933609	Method of making coloured photomasks The method of making coloured photomasks used in manufacture of printed-circuit boards and microcircuits, consisting in doping the surface of a glass substrate with a staining metal by virtue of a repeated electrodiffusion of the ions of the staining meta...	01/20/1976

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Class 204/550 - Ionophoresis