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Class 435/818 - AERATION OR OXYGEN TRANSFER TECHNIQUE


Subclass of Class 435 - Chemistry: molecular biology and microbiology
Definition: Subject matter in which a fermentor is aerated or other
No. of patents: 127
Last issue date: 12/04/2007


1        
NumberTitleIssue Date
7303908Bioremediation assembly
A bioremediation assembly and method for bioremediation are described and which includes a bioremediation reservoir defining a cavity; a pump mounted within the bioremediation reservoir and which removes the aqueous bioremediating fluid from the bioremediation reser...
12/04/2007
7015038Method and apparatus for preparing and culturing cells
A method and an apparatus for preparing and culturing cells, particularly bone marrow stromal cells. The method includes the steps of placing an oxygenator and a scaffold in a container, such as a syringe, withdrawing bone marrow stromal cells with the syringe, even...
03/21/2006
6794182Hyperbaric oxygen organ preservation system (HOOPS)
A method of delivering oxygen to a biological entity comprising of dissolving oxygen into a perfusate and forcing the perfusate through the biological entity whereby substantially high levels of oxygen are available to satisfy the biological demand of the biological...
09/21/2004
6767381Method of producing compost tea and apparatus therefor
Method of producing compost tea by passing an aqueous solution over and through a basket containing compost. This flow leaches and washes microorganisms and nutrients from compost and other organisms and nutrient-rich materials from the basket into the culture tank....
07/27/2004
6723555Multi-sample fermentor and method of using same
A fermentation apparatus is constructed to produce a known and repeatable amount of untainted fermentation product using multiple fermentation vessels. To facilitate further processing compatible with other product processing steps, the fermentation apparatus has an...
04/20/2004
6649405Compost tea system
A compost tea system uses a water-holding tank for containing process water. Compost is immersed into the water in the tank in baskets defining a filter media. Air is pumped into membrane disk diffuser modules in the tank and the liquid is sparged with fi...
11/18/2003
6632657Apparatus for cultivating tissue cells and microorganisms in suspension
An apparatus for cultivating tissue cells or microorganisms in suspension, in a manner which ensures formation of an axially symmetric vortex motion of liquid with an axial countercurrent flow in the cell suspension without stagnant zones at various locat...
10/14/2003
6544788Disposable perfusion bioreactor for cell culture
A disposable bioreactor for perfusion cell culture. Cells are grown in a plastic bag that is rocked and aerated on a mechanical platform. The bioreactor bag contains a filter that allows liquid to be removed from the bioreactor-without losing cells. Nutri...
04/08/2003
6432698Disposable bioreactor for culturing microorganisms and cells
A disposable bioreactor for culturing microorganisms and cells is provided. The bioreactor is suitable for use by individuals not skilled in microbiology or aseptic technique. It is constructed of flexible or semi-flexible waterproof sheets to form a cont...
08/13/2002
6335191Automated system and method for growing bacteria
An automated system and method is provided for cultivating bacteria in a fluid medium and thereafter selectively discharging the fluid medium, wherein an initial supply of the selected strain or strains of bacteria is combined with nutrients and water in ...
01/01/2002
6299776Biochemical oxidation system and process
A biochemical oxidation system and process is disclosed for the removal of insoluble sulfides from metal ores. A liquid mixture of an ore slurry and of a liquid biochemical oxidation medium is flowed through a plurality of covered overflow tanks connected...
10/09/2001
6241802Method for delivery of gas-enriched fluids
A system and method for delivering a gas-supersaturated fluid comprising a fluid reservoir, a fluid pump, a gas source, a high pressure gas exchanger, and one or more arrays of capillary channels is disclosed. Suitable controls such as differential pressu...
06/05/2001
6218177Ventilation for organic matter breakdown
In a container (1) for breaking down organic matter and/or breeding worms, enhanced ventilation is provided via legs (7) which support the container above the ground. Each leg has a longitudinal open channel-like duct which may be formed by making the leg...
04/17/2001
6214574Cross-flow filtration and culture method
A culturing system and method particularly useful for producing cellular products such as viral pathogens of cells. It includes a mass transfer culture segment, stacked filter plates to adjust the medium composition, and a product removal and concentratio...
04/10/2001
6168949Bioreactor with vortex mixing chamber
The invention relates to an apparatus for the aerobic multiplication of micro-organisms. A tank with a conical bottom shape holds the fermentation broth and a circulating pump outside the tank circulates the fermentation broth from the bottom of the tank ...
01/02/2001
6022727Method for forming reversible colloidal gas or liquid aphrons and compositions produced
A method for forming gas or liquid aphrons with reversible surfactants or emulsifiers is described. Polymers which change their emulsifying properties upon change of pH, temperature or other condition are used to form the aphrons. The aphrons are useful f...
02/08/2000
5998184Basket-type bioreactor
Improved hollow fiber bioreactor systems and cell culture methods are described. The improvement includes means which may be a novel basket bioreactor for extending the extracapillary space of a conventional hollow fiber bioreactor....
12/07/1999
5952188Reusable immobilized microbial composition useful as ready-to-use seed inoculum in BOD analysis
A reusable immobilized microbial composition is formulated. The formulated microbial composition comprises a synergistic mixture of the bacterial strains of Enterobacter cloaca, Citrobacter amalonaticus, Pseudomonas aeruginosa,Yersinia enterocolitica, Kle...
09/14/1999
5939313Stationary vortex system for direct injection of supplemental reactor oxygen
A method for efficiently providing supplemental oxygen to a reaction mixture which is oxidized by or otherwise uses air, wherein the reaction mixture is agitated to create one or more stationary vortices, oxygen is injected into the reactor vessel at a st...
08/17/1999
5936070Chemiluminescent compounds and methods of use
Methods are disclosed for determining an analyte in a medium suspected of containing the analyte. One method comprises providing (1) combining a medium suspected of containing the analyte and a novel chemiluminescent compound, (2) combining a means for ch...
08/10/1999
5869327Apparatus for the biological treatment of substances and/or mixtures of substances in closed rotting reactors
A process and apparatus is disclosed for the biological treatment, in particular composting, of biogenic and abiogenic substances and/or mixtures of substances in a compost pile in the presence of biologically active components such as microorganisms. The...
02/09/1999
5811289Process and apparatus for effecting a biological aerobic pretreatment of dairy industry effluent
This aerobic waste pretreatment process comprises inoculating a milk industry effluent with a mixture of bacteria and yeasts both classes of microorganisms capable of living and growing in symbiosis in the effluent, the population of the bacteria being, i...
09/22/1998
5798254Gas driven fermentation method using two oxygen-containing gases
A gas driven fermentation method is disclosed wherein a gas, such as air, is passed heterogeneously upwardly through a fermentation broth to agitate and recirculate the broth. Further, the provision of oxygen for fermentation permits the carbon dioxide to...
08/25/1998
5786136Method and device for conserving organs, body extremities and pieces of body tissue
Described is a method and device for conserving organs, body extremities and pieces of body tissue by means of an extracorporal circulation system. Conservation is carried out at room temperature or body temperature. Long-term conservation is carried out ...
07/28/1998
5763279Gas permeable bioreactor and method of use
This invention relates to an apparatus and method of use for a new simply constructed bioreactor made at least partially of gas permeable materials. The bioreactor is useful for culturing cells and tissues in suspension in a liquid nutrient medium with mi...
06/09/1998
5735934Method for delivering a gas-supersaturated fluid to a gas-depleted site and use thereof
A method of injecting gas-supersaturated fluids as a bubble-free effluent from a delivery system into a relatively low pressure, gas-depleted environment without cavitation or bubble formation. The method includes the steps of eliminating cavitation nucle...
04/07/1998
5723325Indolyl-3-alkane alpha-hydroxylase compositions from pseudomonas XA
Compositions containing two species of indolyl-3-alkane alpha-hydroxylase (INDH) are isolated from Pseudomonas XA. An INDH1 composition contains protein subunits having molecular weights of 75,000, 34,500 and 32,500 daltons. An INDH2 composition contains ...
03/03/1998
5702941Gas permeable bioreactor and method of use
This invention relates to an apparatus and method of use for a new simply constructed bioreactor made at least partially of gas permeable materials. The bioreactor is useful for culturing cells and tissues in suspension as well as attached to the inside s...
12/30/1997
5693528Composting unit having a ventilation system for closed rotting units
A composting unit is disclosed having a ventilation system for closed rotting units. A number of fans, passageways, and valves are designed and arranged in such a way that they ensure flow of conditioned circulating air, as desired, over and/or through an...
12/02/1997
5674744Humus maker
The invention relates to a humus maker, particularly to an apparatus which turns household waste such as kitchen waste into mature humus, the apparatus having a lid and base with an internal windrow device which is operative to be turned manually to keep ...
10/07/1997
5665594Gas permeable bioreactor and method of use
A rotating cell vessel (4), designed to be simply constructed, and method of use have been developed. The vessel (4) is constructed of materials which are permeable to oxygen and carbon dioxide, and when rotated horizontally around central axis (10) suspe...
09/09/1997
5601757Gasification-tube module and reactor for cell cultivation
A cell culture reactor can have one or more gasification modules in which tubular membrane hoses surround rigid inner tubes which extend above the membranes to communicate with gas inlets or outlets. The tube is anchored in a closure member at the lower e...
02/11/1997
5576211Modular culture vessel for cell cultures
Culture vessels for cell cultures having at least one cell culture chamber containing a cell culture mixture that is separated by a dialysis membrane from a nutrient medium in a nutrient supply chamber. Nutrients are transported through the dialysis membr...
11/19/1996
5538860Method for the local composting and drying of organic wastes and relative device
Method and device for the local composting and drying of organic wastes, which is employed for the collection and aerobic conversion on the spot of organic wastes so as to obtain a finished product, compost, intended for use as an agricultural improvement...
07/23/1996
5523228Hydrodynamic cell culture environment for three dimensional tissue growth
A cell culture chamber with a novel hydrodynamic environment, constructed with gas permeable membranes is disclosed. The culture chamber is horizontally rotated, wall movement suspends cells and enhances oxygen mass transfer as cells aggregate and grow in...
06/04/1996
5523234Equipment for the anaerobic fermentation of organic materials
An equipment for the anaerobic fermentation of organic materials, which includes a plurality of nozzles for injecting biogas under pressure into a fermenter, which nozzles are fitted on the periphery of the fermenter to improve the flow of the materials w...
06/04/1996
5518893Quick biochemical oxygen demand test and apparatus for the same
The biochemical oxygen demand (BOD) of aqueous liquids containing organic matter is determined. A microorganism culture is aerated to exhaust the organic matter available to the microorganisms. An aqueous liquid test sample containing organic matter is ad...
05/21/1996
5449617Culture vessel for cell cultures
Culture vessels for cell cultures having at least one cell culture chamber containing a cell culture mixture that is separated by a dialysis membrane from a nutrient medium in a nutrient supply chamber. Nutrients are transported through the dialysis membr...
09/12/1995
5437998Gas permeable bioreactor and method of use
A new rotating cell vessel and method of use have been developed. The vessel is constructed of materials which are permeable to oxygen and carbon dioxide, and when rotated horizontally suspend the contents, cells and particle substrates, in a liquid mediu...
08/01/1995
5426024Fermentation method and fermentor
A method for aerobic production of microbial cells and/or cell metabolites in a fermentation vessel having at least a riser and at least a downcomer. The method is especially useful to conduct high cell density fermentation processes and involves the cont...
06/20/1995
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