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| Number | Title | Issue Date |
| 6994811 | Method of manufacturing membranes and the resulting membranes This invention provides a process for making microporous membranes from a polymer solution and the membranes therefrom. A thermal assist, such as heating of the polymer solution can be effected subsequent to shaping the solution, such as by forming a film, tube or h... | 02/07/2006 |
| 6984318 | Chromatographic column seal A seal on a movable top or bottom plate for use in a chromatography column. The plate is formed of a flow distributor connected to one or more movement rods that control the movement of the top plate within a chromatography column. The plate is formed of two pieces,... | 01/10/2006 |
| 6942794 | High velocity chromatography column flow distributor The present invention is a flow distributor and integral bed support for a chromatography column. The flow distributor has an outlet extending through it and a bottom face across which is secured a bed support. The bottom face has a series of ribs extending radially... | 09/13/2005 |
| 6944522 | Chemical process machine programming system The present invention provides an operation editor that includes a user interface for programming operations to be performed by a chemical process machine. Through the user interface the user may specify that one or more of the steps in an operation be variable. Suc... | 09/13/2005 |
| 6913786 | Laminated edge filter structure and method of making The present invention relates to a filter element having a non-porous extrusion laminated strip formed on at least one edge and at least one side of a membrane. The strip is used to provide a means for ensuring a good bond between the filter element and the material... | 07/05/2005 |
| 6863250 | Disposable filter floor stand The present invention relates to a stand for holding disposable filter capsules and is formed of three or more legs, a base above the legs and to which the leg as are attached and three or more arms that are attached to an opposite surface of the base from that of t... | 03/08/2005 |
| 6852222 | Multiple well plate with adhesive bonded filter The present invention provides for a multiple well filter plate and method of producing same, the multiple well filter plate comprising a molded plate and a filter sealed via an adhesive, the method particularly adapted for producing multiple well filter plate havin... | 02/08/2005 |
| 6824679 | Hollow fiber separation module and methods for manufacturing same The present invention provides methods for producing single and multi-layered coiled hollow fiber bundles for use in separation modules whose performance can be predicted, said modules being designed to take advantage of the benefits of Dean vortices. The present in... | 11/30/2004 |
| 6779669 | Filter unit with thermoplastic overmold seal member The present invention provides a filter cartridge or filter unit (11) produced by a thermoplastic overmolding process that allows for using a single mold for overmolding a variety of different sized filter elements (12) or membranes and a method for se... | 08/24/2004 |
| 6776294 | Device for microbiological examination of a sample of liquid under pressure and method for draining this device This concerns a device whose filtering membrane is gripped annularly at the periphery between a first member forming part of an intake body and a second member forming part of a drainage body with one out of the first member and second member having an elastomer sea... | 08/17/2004 |
| 6764653 | Method of forming well(s) containing filtration devices A single or multiwell plate using membrane, preferably an ultrafiltration membrane to filter selected solutes from a liquid is disclosed. In particular, a preferred construction and method of sealing the membrane to the interior of the well so as to form an integral... | 07/20/2004 |
| 6759233 | Method of plasmid recovery and apparatus for doing so A process for the recovery of plasmids or other DNA from cells using a first filtration step to remove the cellular debris and other large cellular components and then an ultrafiltration step to capture the plasmids or other DNA on the surface of the ultrafiltration... | 07/06/2004 |
| 6742659 | Multiple well plate with adhesive bonded filter The present invention provides for a multiple well filter plate and method of producing same, the multiple well filter plate comprising a molded plate and a filter sealed via an adhesive, the method particularly adapted for producing multiple well filter plate havin... | 06/01/2004 |
| 6741084 | Device for measuring the oxidizable carbon of a liquid and a method for the use thereof The present invention provides a device useful in the photo-oxidation of a sample liquid and in the measurement of the oxidized carbon content thereof. The device includes a cell, at least two elongate probes, and a temperature sensitive element. The cell includes a... | 05/25/2004 |
| 6709598 | Membrane filtration device One or more hollow fiber membranes having a coflow of filtrate to provide trans-membrane pressure (TMP) control. The membranes preferably are capable or forming a shear effect or Dean vortices at their inner surface. Optionally, the filtrate channel may contain one ... | 03/23/2004 |
| 6643018 | Optical scattering monitor The present invention relates to the monitoring of polymers during their processing by the determination of optical scattering properties. According to one aspect of the invention, there is provided a monitoring system for a vessel for polymer processing ... | 11/04/2003 |
| 6490777 | Methods for producing solid subassemblies of fluidic particulate matter The present invention provides methods and devices for producing a subassembly for devices designed to receive particulate matter in a compartment of predetermined shape.... | 12/10/2002 |
| 5681438 | Membrane module assembly A membrane module in which non-porous membranes are bonded to spacer elements, which elements are in turn bonded to each other to create a membrane support zone as a result of contact with the surface of the membrane opposite the surface to which the memb... | 10/28/1997 |
| 4537129 | Offset printing blanket A method of making-up offset printing cylinders having lock-ups positioned in gaps in the cylinders by use of a two piece system involving adhering a compressible printing element to the cylinder with at least one edge extending into the lock-up gap, trim... | 08/27/1985 |
