Class 204/527 - Biological material prepared, recovered, or treated (e.g., urine, etc.)

Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Process in which biological material is prepared, recovered,
No. of patents: 26
Last issue date: 05/29/2007

Number	Title	Issue Date
7223327	Method of preparing free polyelectrolyte membranes A releaseable membrane structure for producing a free membrane containing a substrate, a release stratum on the substrate and a membrane stratum on the release stratum. The release stratum and the membrane stratum contain oppositely-charged polyelectrolytes that are...	05/29/2007
7169614	Electrochemical detection method of complementarity to nucleic acid bases A convenient and commonly applicable method for the specific detection of a nucleic acid with an arbitrary sequence is provide. This method comprises attaching at least a nucleic acid single strand to an electrode, bringing the thus-obtained modified electrode in co...	01/30/2007
7108784	Apparatus for removal and destruction of ammonia from an aqueous medium Methods and apparatuses are provided for the removal and destruction of ammonia from an aqueous medium. The methods and apparatuses include the removal of ammonia from an aqueous medium by contact with either natural or synthetic zeolite. The spent zeolite is re-gen...	09/19/2006
7066900	Removal of metabolic components from blood An electrophoresis system for removing or reducing concentration of a metabolic component from blood or plasma of a subject is provided. A method for removing or reducing concentration or amount of a metabolic component in blood or plasma of a subject is also provid...	06/27/2006
6969453	Small separation apparatus An electrophoresis apparatus for processing compounds in small sample volumes comprising a cathode in a static cathode buffer zone or compartment, an anode in a static anode buffer zone or compartment. The cathode disposed relative to the anode so as to be adapted t...	11/29/2005
6919006	Apparatus for macromolecule purification An electrophoresis apparatus, comprises a cartridge configured to be removably mounted in the apparatus, and a separation membrane positioned in the cartridge. The separation membrane has a first side along which a first flow path defined in a first grid element and...	07/19/2005
6638408	Method and device for separation of charged molecules by solution isoelectric focusing The invention provides a novel solution isoelectric focusing device and method that can reproducibly fractionate charged molecules into well-defined pools. This approach can be applied to mixtures of charged molecules, such as eukaryotic proteome samples ...	10/28/2003
6551803	Method for purification of amino acid containing solutions by electrodialysis A process is described for purifying an amino acid-containing solution by means of electrodialysis, wherein an amino acid-containing solution is employed which is obtained from the fermentation for producing at least one amino acid....	04/22/2003
6331236	Electrodialysis of salts for producing acids and bases An electrodialysis cell is operated in the presence of organic compounds that bind or chelate with the multivalent metals to form metal-chelate buffers. Among other things, this binding or chelating reduces power consumption, produces a stable cell operat...	12/18/2001
6294066	Apparatus and process for electrodialysis of salts An apparatus and the process produces salts by an electrodialysis operation. The basic electrodialysis apparatus is a cell having a number of compartments separated by membranes. A DC source is connected to drive a current through a feed stream passing th...	09/25/2001
6270672	Devices and methods for removing pathogens from biological fluids A method for removing pathogens from biological liquids and an apparatus for performing such a method, said method comprising the steps of providing a biological liquid, wherein pathogens are potentially present, in an apparatus comprising an anode and a katho...	08/07/2001
6139714	Method and apparatus for adjusting the pH of a liquid A process for adjusting the pH of an aqueous flowable fluid includes an electrochemical mechanism for adjusting the pH of an aqueous flowable fluid and a mechanism for then electrochemically stabilizing the adjusted pH of the fluid. A device for performin...	10/31/2000
6110342	Process for production of amino acid hydrochloride and caustic via electrodialysis water splitting The invention uses a stack of three compartment electrodialysis cells in a process for the production amino acid hydrochloride and an alkali. The electrodialysis cell contains bipolar, cation and anion membranes which are arranged to form acid, base and s...	08/29/2000
5814197	Electrodialysis including filled cell electrodialysis (electrodeionization) Improved electrodialysis (ED) stacks are disclosed having one or more components selected from the group: a) cation exchange membranes having ion exchange groups predominantly sulfonic acid groups and a minor amount of weakly acidic and/or weakly basic gr...	09/29/1998
5814498	Process for the recovery of organic acids and ammonia from their salts A process recovers organic acid and ammonia from their salts preferably obtained from microbial fermentation of a saccharide in a nutrient. The fermented materials is passed through a nanofiltration or a chelating resin ion-exchange bed or a combination o...	09/29/1998
5766439	Production and recovery of organic acids A process is described for producing organic acids such as lactic acid. The process includes the steps of producing lactic acid by fermentation, resulting in an aqueous fermentation broth containing lactic acid, and adding a calcium base, such as calcium ...	06/16/1998
5681728	Method and apparatus for the recovery and purification of organic acids The present invention relates to methods and apparatus for reducing the fouling of ion-selective membranes used in the electrodialytic purification of organic acids. More particularly, the present invention relates to the use of nanofiltration and chelati...	10/28/1997
5223107	Electrodialysis method for demineralization of liquid, whey-based material A process for demineralization of whey-based material using electrodialysis. The process involves increasing the conductivity of the diluting stream, i.e, the stream containing the material to be demineralized, at one or more points in time during the ele...	06/29/1993
4885247	Recovery and purification of lactate salts from whole fermentation broth by electrodialysis A process for producing, recovering and purifying lactate from a fermentation broth so that it can be efficiently and economically converted to lactic acid is disclosed. The process comprises growing a high lactate producing, microorganism on an inexpensi...	12/05/1989
4599176	Process for the production of cell stimulating agents The invention concerns a process for obtaining cell respiratory stimulating active agents having a molecular weight in the range of about 300 to 8000 Dalton, by defibrination of calves blood, hemolyzing the solution obtained thereby, separating the protei...	07/08/1986
4322275	Fractionation of protein mixtures This invention relates to the separation of complex protein mixtures by lowering (desalting) or by raising (salting-out) their electrolytic (ionic) concentration by electrodialysis followed by chilling, pH adjustment, filtration, and/or centrifugation and...	03/30/1982
4276140	Electrodialysis apparatus and process for fractionating protein mixtures Apparatus and process for the fractionation of liquid solutions of protein mixtures which includes the steps of subjecting such solutions to electrodialysis (ED) while in the pH range of about between 5-8 until a partial or a substantially complete desalt...	06/30/1981
4227981	Electrodialysis of acid whey Reduction of ash and titratable acidity in liquid whey is accomplished by electrodialysis, without substantial precipitate formation, by passing at least a portion of the whey through a demineralization unit composed of a number of whey streams each bound...	10/14/1980
4146456	Process for adjusting the ash balance of cow's milk and other milks and simultaneously removing minerals from the same Cow's milk and/or its analogues are demineralized and the ash balance thereof adjusted with ion-exchange membrane electrodialysis apparatus. The method comprises demineralizing cow's milk or its analogues in a first stage consisting of one or more of elec...	03/27/1979
4146455	Process for treating whey A process for treating liquid whey is disclosed in which raw whey is first partially demineralized by electrodialysis and then subjected to forced flow electrophoresis to effect the separation of lactose and a simultaneous increase in the percentage solid...	03/27/1979
4110175	Electrodialysis method An electrodialysis method for deacidifying a feedstream comprises a first cell defined by anion-selective membranes and bounded by a pair of cells defined by the anion-selective membranes and a pair of cation-selective membranes. The solution to be treate...	08/29/1978

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Class 204/527 - Biological material prepared, recovered, or treated (e.g., urine, etc.)