Francis X Cole, James H Edwards, Clifford L Hendrick, Deborah M VanVoorhis: Test device. Millipore Corporation, Kenneth D Hudson, January 20, 1981: US04246339 (185 worldwide citation)

A test device for assaying liquid samples for the presence of a predetermined reagent is described. The device comprises telescoping top and bottom members defining a liquid reservoir therebetween, resilient means for biasing the members in the open position, one or more test wells in the top member ...

Anthony J Giuffrida, Anil D Jha, Gary C Ganzi: Electrodeionization apparatus. Millipore Corporation, Andrew T Karnakis, Paul J Cook, December 30, 1986: US04632745 (173 worldwide citation)

An electrodeionization apparatus and process are provided for removing ions from liquids. Liquid to be purified is passed through depleting compartments containing mixed anion and cation exchange resin beads while a second liquid is passed through concentrating compartments free of ion exchange resi ...

Michael J Steuck: Porous membrane having hydrophilic surface and process. Millipore Corporation, Andrew T Karnakis, Paul J Cook, October 21, 1986: US04618533 (167 worldwide citation)

A composite porous membrane is formed from a porous polymeric membrane having desired bulk properties on which is directly coated a cross-linked polymer having desired surface properties. The composites membrane retains the porosity of the porous polymeric membrane. A preferred composite porous memb ...

Joseph D Grandine II: Processes of making a porous membrane material from polyvinylidene fluoride, and products. Millipore Corporation, Irons and Sears, May 20, 1980: US04203848 (136 worldwide citation)

Covers processes for making microporous membranes and molecular filtration membranes from vinylidene fluoride polymers, and the products so produced. A continuous version of the process consists of applying a layer of a solution of a polyvinylidene fluoride polymer to a rigidly supported surface of ...

James M Coull, Leif Christensen: Method for degradation and sequencing of polymers which sequentially eliminate terminal residues. Millipore Corporation, Testa Hurwitz & Thibeault, June 18, 1996: US05527675 (130 worldwide citation)

A method and apparatus for sequentially degrading at least a portion of a polymer of backbone repeating units, the polymer having a terminal repeating unit comprised of a nucleophile and a backbone carbonyl carbon distant from the nucleophile, comprising the steps of first initiating attack of said ...

Paul T Nix, Spencer M Fields: 4-Aminoantipyrine dye for the analytic determination of hydrogen peroxide. Millipore Corporation, Kenyon & Kenyon, March 23, 1982: US04321397 (122 worldwide citation)

A 3-aminobenzoic acid or a 3-aminobenzenesulfonic acid, when reacted with a 4-aminoantipyrine in aqueous medium in the presence of hydrogen peroxide forms a novel colored dye which is believed to be a charge-transfer complex of free radicals formed from the 3-aminoaromatic acid and the 4-aminoantipy ...

Douglas P Wittmer, Michael J Tomany, Joseph A Jarell: Insulated needle for forming an electrospray. Millipore Corporation, Andrew T Karnakis, Paul J Cook, June 29, 1993: US05223226 (119 worldwide citation)

An electrically insulated needle tip is provided for forming an electrospray from a solution containing a solute sample. The insulated needle tip is positioned between an upstream electrode and a downstream counterelectrode. The solution passes through the needle, emerges from the insulated tip and ...

Francis X Cole, Deborah M Van Voorhis: Immobilized antibody or antigen for immunoassay. Millipore Corporation, David Prashker, Paul J Cook, October 4, 1983: US04407943 (113 worldwide citation)

An antigen or antibody and an immunochemically neutral protein are immobilized in two stages on a microporous membrane coated with a protein such as zein or collagen. Immobilized antigen to Toxoplasma gondii is used in an immunoassay to detect the presence of antibody to Toxoplasma gondii in serum. ...

John K Shuler, Stephen J Lovell, Abigail S Fisher, Alan J Weiss, Robert W Rosenstein: Direct read lateral flow assay for small analytes. Becton Dickinson and Company, Millipore Corporation, Bruce S Weintraub, August 25, 1998: US05798273 (112 worldwide citation)

The present invention relates to a method and assay device for detecting small analytes. The results of the assay can be directly read from the device, which is a lateral flow device.

Anthony J Giuffrida, Gary C Ganzi: Process for purifying resins utilizing bipolar interface. Millipore Corporation, Andrew T Karnakis, Paul J Cook, May 18, 1993: US05211823 (107 worldwide citation)

Purified ion exchange resin particles are provided in a bifunctional electrodeionization step having anion depletion compartments containing anion exchange resin particles which are purified and cation depletion compartments containing cation exchange resin particle which are purified as well as ion ...