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| Number | Title | Issue Date |
| 7326346 | High capacity regenerable sorbent for removal of arsenic and other toxic ions from drinking water The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc... | 02/05/2008 |
| 7314845 | Supported catalyst systems The present invention relates to a supported catalyst system. The supported catalyst of the present invention comprises an inorganic support having attached to at least one surface thereof non-acidic, hydrophilic, hydroxyl-containing organic R10 groups ha... | 01/01/2008 |
| 7192729 | Methods for assaying homocysteine The present invention relates to compositions and methods for assaying homocysteine (Hcy) and thus related moieties, e.g., S-adenosylhomocysteine (SAH) or adenosine. More particularly, assay methods that employ, mutant SAH hydrolase having binding affinity for Hcy, ... | 03/20/2007 |
| 7183235 | High capacity regenerable sorbent for removing arsenic and other toxic ions from drinking water The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc... | 02/27/2007 |
| 7183336 | Irradiated absorbent materials Polymer particles are irradiated with radiation from a high energy source to increase the water or other fluid absorbency of the particles. Products manufactured using the activated particles include protective undergarments, bandages, kitty litter, and spill clean ... | 02/27/2007 |
| 7166213 | Solid compositions for selective adsorption from complex mixtures The present invention relates to a solid and method useful in separating chemical components in a complex mixture when at least one of the chemical components of the mixture is capable of being selectively adsorbed. The solid of the present invention comprises an in... | 01/23/2007 |
| 7052609 | Method for regeneration of adsorbent matrices The present invention relates to the regeneration of adsorbent matrices that are used for the purification of substances from aqueous liquid samples derived from biological material. The method is adapted to adsorbent matrices that are sensitive to hydrolysis either... | 05/30/2006 |
| 7048781 | Chemically-impregnated silicate agents for mercury control The present invention is directed to a contaminant removal agent comprising a polyvalent metal sulfide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered sil... | 05/23/2006 |
| 6998042 | Solid compositions for selective adsorption from complex mixtures The present invention relates to a solid and method useful in separating chemical components in a complex mixture when at least one of the chemical components of the mixture is capable of being selectively adsorbed. The solid of the present invention comprises an in... | 02/14/2006 |
| 6942840 | Method for removal and stabilization of mercury in mercury-containing gas streams The present invention is directed to a process and apparatus for removing and stabilizing mercury from mercury-containing gas streams. A gas stream containing vapor phase elemental and/or speciated mercury is contacted with reagent, such as an oxygen-containing oxid... | 09/13/2005 |
| 6911570 | Method for fixating sludges and soils contaminated with mercury and other heavy metals The invention relates to a method, composition and apparatus for stabilizing mercury and other heavy metals present in a particulate material such that the metals will not leach from the particulate material. The method generally involves the application of a metal ... | 06/28/2005 |
| 6875254 | Methods for detecting and extracting gold Methods for detecting gold and quantitating gold in ore samples utilizing a gold-specific protein are provided, including methods for multiple sample handling. Also provided are methods for extracting gold from mineral suspensions utilizing a magnetic mineral bindin... | 04/05/2005 |
| 6774082 | Compositions for separating heterocyclic aromatic amine bases, nucleosides, nucleotides, and nucleotide sequences The compositions of the present invention comprise one or more palladium bound ligands that are covalently bonded to inorganic or organic solid supports. These palladium bound ligands bonded to solid supports can be used for single heterocyclic amine base separation... | 08/10/2004 |
| 6686202 | Methods for detecting and extracting gold Methods for detecting gold and quantitating gold in ore samples utilizing a gold-specific protein are provided, including methods for multiple sample handling. Also provided are methods for extracting gold from mineral suspensions utilizing a magnetic min... | 02/03/2004 |
| 6610630 | Chromatography adsorbents utilizing mercapto heterocyclic ligands A pseudobioaffinity chromatography adsorbent adapted for use in selectively adsorbing immunoglobulins. In one embodiment, the adsorbent includes: (a) a solid support material; and (b) a ligand immobilized on the surface of the solid support material, said... | 08/26/2003 |
| 6414096 | Process for the preparation of a polyolefin Olefins of the formula R11 --CH.dbd.CH--R12 (R11, R12 =H or C1 -C14 -alkyl) are polymerized in the presence of a catalyst consisting of at least one metallocene of the formula I ##STR1## (M... | 07/02/2002 |
| 6309999 | Process for the preparation of an immunoadsorbent matrix A process for the preparation of an immunoadsorbent matrix includes preparing polyvinyl alcohol beads by partially crosslinking polyvinyl alcohol (PVA) with a crosslinking agent to provide polyvinyl alcohol beads which are at least partially crosslinked; ... | 10/30/2001 |
| 6153707 | Method of producing material for purification of physiological liquids of organism A method of producing a material for purification of physiological liquids of organism has the steps of providing a polymer which has a size, a shape, and a structure selected so as to remove toxic compounds from the physiological liquids, chemically modi... | 11/28/2000 |
| 6090292 | Device for purifying solutions containing proteins and use of the device The invention relates to a device for purifying protein-containing solutions such as blood, blood plasma or cell culture media, where a biocompatible support material made of a plastic material, selected from the group of polyacrylates, polymethacrylates,... | 07/18/2000 |
| 5900144 | Separating agent comprising bonded conalbumin Disclosed is an optical isomer separating agent composed of a stationary phase having a support and a chemically modified conalbumin. The separating agent may be used in a high-performance liquid chromatography column.... | 05/04/1999 |
| 5821193 | Adsorbent having a terminal hydrazine group and a method for removing ketoamine-containing protein An adsorbent for removing ketoamine-containing protein, which comprises carrying a compound having a terminal functional group of the formula: ##STR1## wherein each of R1 and R2 is an organic group and X is 0 or 1, on a porous w... | 10/13/1998 |
| 5801116 | Process for producing polysaccharides and their use as absorbent materials A solid composition of matter comprising one or more polysaccharides which has a coarse particle size is provided. The composition demonstrates absorbent properties and is useful in absorbent articles of manufacture. Also provided is a method for preparin... | 09/01/1998 |
| 5731418 | Collagen-based sorbent polymer and method of preparing same A modified collagen product adapted for use as a sorbent is provided which includes collagen polymer having a density of from about 0.2-1.3 g/ml, an intrafibril pore size of from about 25-150 microns, and up to about 80% of the helicity of otherwise ident... | 03/24/1998 |
| 5567316 | Process for recovering metals from solution utilizing metalloprotein affinity chromatography A process for recovering metals from an aqueous metal-ion bearing solution includes the steps of: (a) forming an affinity chromatography matrix by providing a metal bearing protein bound to an insoluble support material to form an immobilized metalloprote... | 10/22/1996 |
| 5561097 | Method of controlling density of ligand coupled onto supports and products produced therefrom A method is disclosed for controlling the coupling low molecular weight ligands to activated sites on a support in competition with a quencher of the activated sites. Derivatized supports produced by the method have optimal ligate binding without overly d... | 10/01/1996 |
| 5545317 | Liquid column packing materials and method for making the same Packing materials for liquid chromatographic or catalytic columns are prepared by contacting a porous protein-adsorptive particulate or membranous support, such as a porous silica particulate support, with an aqueous solution into which a protein has been... | 08/13/1996 |
| 5512169 | Liquid column packing materials Packing materials for liquid chromatographic or catalytic columns are prepared by contacting a porous protein-adsorptive particulate or membranous support, such as a porous silica particulate support, with an aqueous solution into which a protein has been... | 04/30/1996 |
| 5480542 | Packings combining protein to a support via a spacer A packing for chromatography whereby a low molecular weight substance contained in biological samples can be analyzed directly at a high accuracy without any pretreatments. This packing is combining a protein such as avidin and ovomucoid to the support vi... | 01/02/1996 |
| 5441643 | Process for recovering metals from solution utilizing metalloprotein affinity chromatography A process for recovering metals from an aqueous metal-ion bearing solution includes the steps of: (a) forming an affinity chromatography matrix by providing a metal bearing protein bound to an insoluble support material to form an immobilized metalloprote... | 08/15/1995 |
| 5407581 | Filter medium having a limited surface negative charge for treating a blood material Disclosed is a filter medium for treating a blood material selected from the group consisting of a leukocyte-containing suspension and plasma, comprising a polymeric, porous element having, in a surface portion thereof, a negative charge and having a surf... | 04/18/1995 |
| 5354461 | Packings combining protein to a support via a spacer A packing for chromatography whereby a low molecular weight substance contained in biological samples can be analyzed directly at a high accuracy without any pretreatments. This packing is combining a protein such as avidin and ovomucoid to the support vi... | 10/11/1994 |
| 5284936 | Polyamino acid superabsorbents Substantially water-insoluble, crosslinked polypeptides containing 15 to 85 mole % of amino acid residues such as glutamic acid, aspartic acid, phosphoserine, phosphohomoserine, phosphotyrosine, phosphothreonine, phosphoasparagine, or phosphoglutamine, an... | 02/08/1994 |
| 5247068 | Polyamino acid superabsorbents Substantially water-insoluble, crosslinked polypeptides containing 15 to 85 mole % of amino acid residues such as glutamic acid, aspartic acid, phosphoserine, phosphohomoserine, phosphotyrosine, phosphothreonine, phosphoasparagine, or phosphoglutamine, an... | 09/21/1993 |
| 5240602 | Chromatographic material Chromatographic material having the general formula S-B-X-Y-L where S is a solid support, B is a binding group, X is a substantially non-ionic hydrophilic organic spacer, Y is a coupling group and L is an affinity ligand. The chromatographic material is s... | 08/31/1993 |
| 5205929 | High stability porous zirconium oxide spherules The present invention provides a stable stationary phase for chromatography which comprises porous ZrO2 spherules coated with a cross-linked polymer coating wherein said coated spherules have a pore size from about 20-500 Å and a particle diam... | 04/27/1993 |
| 5153166 | Chromatographic stationary supports Methods for modifying polyhydroxylated materials by the direct covalent bonding of nucleophilic ligands to the former sites of hydroxyl groups on the material are disclosed. More specifically, methods for activating the surface of polyhydroxylated materia... | 10/06/1992 |
| 5147537 | Carrier for affinity chromatography immobilized with antibodies The present invention relates to a carrier for affinity chromatography comprising an insoluble carrier and antibodies which are modified by activated polyethyleneglycol and immobilized on the insoluble carrier, the antibodies being modified by activated p... | 09/15/1992 |
| 5112796 | Manganese dioxide impregnated filter A foraminous filter useful for removing particulates from a gas being flowed therethrough having impregnated therein a manganese dioxide absorbent active for removal of Total Reduced Sulfur compounds from the gas.... | 05/12/1992 |
| 5084389 | Bioadsorption composition and process for production thereof A novel bioadsorption composition suitable for removing heavy metal from waster water effluent, the composition comprising a biomass encapsulated sol-gel matrix. A process for preparing the biomass encapsulated sol-gel matrix is also provided. The bioadso... | 01/28/1992 |
| 5059577 | Fluid absorbent composition A composition for absorbing liquids comprises an organic material derived from at least one substance selected from the group consisting of plant gums and plant mucilages. The absorbing compositions are applied as powders, pastes, or sheets.... | 10/22/1991 |
