Patents Represented by Attorney, Agent or Law Firm Timothy J. King, Esq.
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Patent number: 6354443Abstract: A porous membrane product is provided which is formed from a porous membrane substrate having its surface completely modified with a perfluorocarbon copolymer composition. The porous membrane product has substantially the same permeability as the porous membrane substrate.Type: GrantFiled: May 1, 1997Date of Patent: March 12, 2002Assignee: Millipore CorporationInventor: Wilson Moya
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Patent number: 6273271Abstract: A porous membrane product is provided which is formed from a porous membrane substrate having its surface completely modified with a perfluorocarbon copolymer composition. The porous membrane product has substantially the same permeability as the porous membrane substrate.Type: GrantFiled: October 19, 1998Date of Patent: August 14, 2001Assignee: Millipore CorporationInventor: Wison Moya
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Patent number: 6179132Abstract: A porous membrane is provided which is formed from a porous polyperfluorocarbon membrane substrate having its surface modified with a perfluorocarbon polymer composition. The modified surface is directly wet with an aqueous liquid.Type: GrantFiled: March 13, 1998Date of Patent: January 30, 2001Assignee: Millipore CorporationInventor: Wilson Moya
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Patent number: 6131649Abstract: A heat exchange apparatus is provided which is formed from at least one multilayer presealed element and at least one monolayer element that are insert molded together. The heat exchange apparatus is provided with an inlet and an outlet for a process fluid and at least one inlet and at least one outlet for a heat exchange fluid. The sealing configuration of the presealed elements and the seal provided by the insert molding effect a seal configuration that causes heat to be transferred between the process fluid and the heat exchange fluid while preventing mass transfer between the two fluids.Type: GrantFiled: January 22, 1999Date of Patent: October 17, 2000Assignee: Millipore CorporationInventors: Steven R. Pearl, Charles D. Christy
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Patent number: 6109881Abstract: A gas driven pump controls the process fluid pressure within a filtering and dispensing system. A pressure controller in the pump controls gas pressure within an enclosed chamber in the pump. The gas chamber is adjacent a floating piston that rests atop a layer of incompressible fluid in a fluid chamber. The incompressible fluid connects to a diaphragm head. As the gas pressure is increased, the floating piston will transmit that pressure through the incompressible fluid that then forces a relative displacement in the process fluid flow. A feedback system used in conjunction with the gas driven pump controls the gas pressure in order to regulate the process fluid flow.In addition, a positive displacement compensator can be used in conjunction with the gas driven pump in order to further regulate the process flow.Type: GrantFiled: January 9, 1998Date of Patent: August 29, 2000Inventors: Ocie T. Snodgrass, Gregory M. Gibson
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Patent number: 6110375Abstract: Water to be purified is passed through a reverse osmosis step to produce a pure water stream and a waste water stream. The waste water is directed to a deionization step to produce purified deionized water which is recycled to the reverse osmosis step. The process directs far less water to waste as compared to conventional reverse osmosis processes. The process also produces water of higher organic and inorganic purity than can be obtained by either reverse osmosis or deionization alone.Type: GrantFiled: January 11, 1994Date of Patent: August 29, 2000Assignee: Millipore CorporationInventors: Mohammed F. Bacchus, Bruce M. Dawson, Gary A. O'Neill
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Patent number: 6094997Abstract: This apparatus has a sieve (4) with a wall (22) perforated with a multitude of holes, means (4, 5) for holding a removable receptacle (20) containing a layer of growth media (21) and means (7, 8) for sucking in air at the periphery of the receptacle (20) in order to cause to enter the apparatus (1), through holes in the wall (22), air which strikes the layer of growth media (21), the latter and the wall (22) being shaped so that their separation increases from their periphery towards their center.Type: GrantFiled: May 12, 1999Date of Patent: August 1, 2000Assignee: Millipore S.A.Inventor: Jean Lemonnier
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Patent number: 6077487Abstract: A process and composition for removing metal carbonyls and moisture from a gas wherein the gas is contacted with a metal oxide, an organometallic oxide or mixtures thereof having a reduction potential greater than about 0.175 volts and a composition capable of removing moisture from the gas.Type: GrantFiled: November 5, 1997Date of Patent: June 20, 2000Assignee: Millipore CorporationInventor: James T. Snow
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Patent number: 6068770Abstract: A disposable separation module is disclosed which is capable of connecting to a fluid processing system in a quick-connect fashion. The module includes a housing containing a separation element with a plurality of fluid connectors on one end of the housing which are parallel to and exclusive of each other. This arrangement provides for essentially simultaneous engagement and fluid tight sealing of the fluid connectors to corresponding mating connectors on the fluid processing system. A retention mechanism is included which retains the entire module in fluid tight engagement by a single action without producing relative motion between the mating connectors.Type: GrantFiled: July 12, 1996Date of Patent: May 30, 2000Assignee: Millipore CorporationInventors: J. Karl Niermeyer, Gaston de los Reyes, Christopher R. Wargo, Richard L. Miller, Stephen K. Guerrera
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Patent number: 6042796Abstract: A process and composition for removing metal carbonyls and moisture from a gas wherein the gas is contacted with a metal oxide, an organometallic oxide or mixtures thereof having a reduction potential greater than about 0.175 volts and a composition capable of removing moisture from the gas.Type: GrantFiled: November 18, 1998Date of Patent: March 28, 2000Assignee: Millipore CorporationInventor: James T. Snow
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Patent number: 6040153Abstract: The cartridge has a body (2) with a grid (7) and an annular wall (8) oriented transversely to this grid and surrounding it, and having a layer (3) of growth media and a flexible fluid-tight film (4) tensioned over an end surface of the annular wall (8) and delimiting an end surface of the layer of growth media (3).According to the method, the surface of the layer of growth media (3) delimited at the time of manufacture by the tensioned film (4) is struck with air jets in order to impact on this surface the microorganisms present in the air.The apparatus has a positioning support common to a sieve for forming the air jets and to the body (2) of the cartridge (1).Type: GrantFiled: March 31, 1999Date of Patent: March 21, 2000Assignee: Millipore CorporationInventor: Jean Lemonnier
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Patent number: 6033460Abstract: A process and composition for removing moisture from a NF.sub.3 or F.sub.2 gas wherein the gas is contacted with alumina particles coated with aluminum trifluoride. The aluminum trifluoride is formed by reacting alumina particles with an aqueous solution of hydrogen fluoride.Type: GrantFiled: April 29, 1998Date of Patent: March 7, 2000Assignee: Millipore CorporationInventor: James T. Snow
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Patent number: 6021925Abstract: An apparatus is provided for delivering precise volumes of a sample liquid. A piston is moved linearly into a first chamber containing an incompressible hydraulic liquid. The chamber includes one wall formed of a flexible diaphragm. The diaphragm separates the first chamber from a second chamber containing a sample liquid. The degree of expansion of the diaphragm and dispensing of the sample liquid from the second chamber are dependent upon the position of the piston within the first chamber.Type: GrantFiled: April 21, 1998Date of Patent: February 8, 2000Assignee: Millipore CorporationInventors: Iraj Gashgaee, Graham Eacock, George L. Gonnella
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Patent number: 5882687Abstract: Compositions for storing contact lenses include a liquid medium containing a polyanionic component, preferably a water soluble polyanionic component, in an amount effective to provide a hydration layer on the surface of said contact lens. The composition has a viscosity of less than 50 cps at 25.degree. C., an osmolality of at least about 200 mOsm/kg, and preferably a pH in the range of about 6 to about 9.Type: GrantFiled: January 10, 1997Date of Patent: March 16, 1999Assignee: AllerganInventors: John Y. Park, Daniel Cafaro, Anthony J. Dziabo