Class 435/295.3 - Including a semi-permeable membrane or filter

Subclass of Class 435 - Chemistry: molecular biology and microbiology
Definition: Apparatus wherein the bioreaction chamber includes at least
No. of patents: 30
Last issue date: 03/20/2012

Number	Title	Issue Date
8137958	Active grip filter plug for sample collection devices A system for collecting a biological sample includes a collection device comprising a cylindrical body having a bore extending there through and a filter membrane disposed at one end thereof; a filter plug having an insert configured for insertion into the bore; a c...	03/20/2012
7527965	Cell culture device The invention relates to a device that is intended, in particular, for the culture of cells. The inventive device consists of a chamber (100) which is intended to receive the cells (10) and which comprises at least one liquid injection conduit (121,...	05/05/2009
7507578	Reduced aperture biological specimen collection and transfer device A filtration based biological specimen collection and transfer device is provided. The filtration and transfer device comprises a tubular body with two axial ends, an annular flange disposed at one of the axial ends, and a biological specimen filter affixed to the o...	03/24/2009
7390653	Culture chamber for biologicals The culture chamber of the present invention has a fluid-filled culture compartment in which cells, tissues and other biologicals are cultured. The culture compartment is transversed by one or more molecular weight cut-off membranes attached to a membrane carrier as...	06/24/2008
7358082	Device and method for culturing cells An object of the present invention is to construct a culture device optimized for culturing animal cells. The present invention provides a device for culturing cells which comprises at least one water-containing polymer gel film for adhering animal cells onto at lea...	04/15/2008
7320889	Cell cultivation device and method A device and a method for the cultivation of cells is disclosed that utilizes external pneumatic pressure responsive to liquid level sensors to gently recirculate and cause turbulence in cell growth medium to promote cell growth without any shearing action and witho...	01/22/2008
7175118	Apparatus and method for processing high viscosity dispersions Apparatus and method for dispersing solid constituents into a liquid vehicle employ an immersion mill operating in combination with a low shear mixer blade assembly which sweeps the walls of a tank containing a batch of solid constituents in a liquid vehicle to circ...	02/13/2007
6746862	Method for cultivation of filamentous fungi The invention discloses a method for cultivation of filamentous fungi using a suspended nutritionally solid substrate, the method including the steps of: (a) preparing a medium comprising a nutritionally solid substrate; and (b) inoculating an inoculum into the medi...	06/08/2004
6696284	Biological filter for the purification of waste gases The present invention relates to a biological filter for the purification of waste gases comprising a bed of biologically active carrier material consisting of pith extracted from coconut husks, the bed being contained such that the waste gases are brough...	02/24/2004
6551818	Biological filter structures A cartridge for holding compost in a biofilter is substantially uniform in cross section perpendicular to the axis of the cartridge and has a sidewall formed with openings that are small enough to substantially retain the compost in the cartridge yet larg...	04/22/2003
6534305	Process for aerobic culture using sintered metal membrane A process for aerobic culture in which ammonia and oxygen are simultaneously supplied, comprising: dispersing and supplying air, oxygen, or a mixed gas thereof into a culture tank through a sintered metal membrane attached the end of a diffusing pipe, and...	03/18/2003
6207445	Filtration and extraction device and method of using the same The present invention involves a simple, disposable, manual filtration and extraction device and method of use that provides a sample directly to an analytical method. The device is capable of providing a clarified liquid ready for analysis or disposal as...	03/27/2001
6100081	Biofilter for purification of waste waters and method therefor Apparatus for the purification of waste water and/or waste gas using a biofilter containing a filtering material, wherein the waste water move downwardly thereinto while the waste gas move upwardly or downwardly thereinto, is disclosed. Also disclosed is ...	08/08/2000
6090572	Filtration and extraction device and method of using the same The present invention involves a simple, disposable, manual filtration and extraction device and method of use that provides a sample directly to an analytical method. The device is capable of providing a clarified liquid ready for analysis or disposal as...	07/18/2000
5811259	Biochemical reactor A biochemical reactor utilizing an immobilized carrier which is useful in applications such as denitrification of waste water and includes a circulation conduit within the interior of the biochemical reactor. A feed conduit feeds recirculating fluid throu...	09/22/1998
5705390	Bioreactor A radial flow bioreactor comprising a reaction vessel having an inlet and an outlet respectively for adding and withdrawing a culture medium and at least one cell basket within the reaction vessel for accommodating a plurality of cell carriers and having ...	01/06/1998
5672507	Apparatus for the surface culture of nucleated cells and cell culture dependent substances An improved bio-reactor with spiral or coil-shaped filling bodies is disclosed, the improvement comprising use of a gas diffusion tube through which air, oxygen or other gases can be bubbled through the fermentation medium....	09/30/1997
5563069	Extractive fermentation using convoluted fibrous bed bioreactor Apparatus and method for converting organic materials such as sugars and acids into other organic materials such as organic acids and salts other than the starting materials with immobilized cells. The invention is applicable to the conversion of the lact...	10/08/1996
5563068	Bioreactor A stainless steel column housing is capped with an O-ring sealed cover to form a sealed autoclavable sterile chamber. A pair of stainless steel mesh circular cylindrical concentric inner and outer columns are within the chamber. A bed of porous glass sphe...	10/08/1996
4960706	Static oxygenator for suspension culture of animal cells A static oxygenator for oxygenating a liquid, particularly a suspension culture of animal cells in a liquid culture medium, comprised of a bottom gassing portion comprised of generally concentric vertically oriented hollow cylinders of porous gas-permeabl...	10/02/1990
4959084	Combined air and water pollution control system A bioaquatic air pollution control system for controlling both water and atmospheric pollution. The pollution control system includes an exhaust for directing polluted gases out of a furnace and a fluid circulating system which circulates fluid, such as w...	09/25/1990
4943535	Anti-lift fermenter A continuous fermenter vessel such as an air-lift fermenter for receiving and cultivating a suspension culture of cells. The vessel contains a mechanism for agitating the suspension culture received in the vessel and causing a gross flow movement of the s...	07/24/1990
4906577	Cell culture bioreactor There is disclosed a cell culture apparatus particularly suitable for the culture of viable, shear sensitive cells, either grown in suspension or attached to a substrate such as microcarrier beads. The apparatus comprises a cell culture compartment and a ...	03/06/1990
4888294	Apparatus and method for the continuous cultivation of microorganisms in a culture liquid Cultivation tank (1) for continuous cultivation of cells or micro-organisms, containing a rotating separating device (11,12) for separating suspended cells from cultivation liquid (10) supplied continuously through a supply (4) and passed through the sepa...	12/19/1989
4847203	Fermentation vessels A fermentation vessel comprises an outer shell, and an annular draft tube located within the shell and spaced therefrom to promote continuous circulation of fluids through said draft tube within said shell. The draft tube has an internal cavity located wi...	07/11/1989
4806484	Perfusion airlift bioreactor A perfusion airlift bioreactor system that consists of the bioreactor, a media reservoir and a molecular weight cutoff (MWCO) filter positioned between the media reservoir and the airlift bioreactor....	02/21/1989
4761380	Fermentation cell for continuous operation A fermenter cell disposed so that the primary axis of the cell is approximately horizontal comprises solid partitions, arranged perpendicularly to the primary axis, which separate the cell into several chambers. The partitions are provided with apertures,...	08/02/1988
4727040	Sparger for fermentation and tissue culturing vessels A sparger for use in microcarrier fermentation systems is provided which includes a narrow, vertically extending outer chamber defined by a solid wall and a wall formed by a screen, wherein air or other gas is forced under pressure through a tube to the b...	02/23/1988
4173516	Device for cultivating cells of animal and human tissues A method of cultivating cells of animal and human tissues includes the steps of introducing the cells into a nutrient solution in which they tend to settle, and maintaining the cells in the solution in a suspended state so as to prevent their settling by ...	11/06/1979
3985622	Method and apparatus for conducting fermentation An apparatus for the aerobic fermentation of microorganisms, with the apparatus including a vessel having an elongate tubular member connected thereto and forming a fermentation zone. A pump is provided to effect flow of fermentation medium from the vesse...	10/12/1976

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Class 435/295.3 - Including a semi-permeable membrane or filter