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...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."

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Class 424/78.26 - Chemical treating agent contains element other than C, H, O, alkali, or alkaline earth metal


Subclass of Class 424 - Drug, bio-affecting and body treating compositions
Definition: Subject matter wherein the solid synthetic organic polymer
No. of patents: 70
Last issue date: 10/14/2008


1    
NumberTitleIssue Date
7435380Pseudo-plastic or thixotropic liquid deodorant product for ostomy pouches
A pseudo-plastic or thixotropic carrier having anti-malodorous components dissolved or suspended therein is sprayed on the internal surfaces of an ostomy bag or pouch. The viscoelastic properties of the carrier allow the composition to be conveniently dispensed from...
10/14/2008
7316811Multi-arm polypeptide-poly (ethylene glycol) block copolymers as drug delivery vehicles
The invention provides a multi-arm block copolymer for use in delivering a variety of bioactive agents. The copolymer of the invention contains a central core from which extend multiple (3 or more) copolymer arms. Each copolymer arm possesses an inner polypeptide se...
01/08/2008
7287650Structures that inhibit microbial growth
Structures treated with a microbiological interception enhancing agent comprising of a water-soluble cationic material having a counter ion associated therewith at specific sites on the cationic material, in combination with a biologically active metal salt, wherein...
10/30/2007
7244703Pharmaceutical compositions and methods for peptide treatment
Compositions and methods for treating a patient with a pharmaceutically active peptide that combines a pharmaceutically active peptide, a permeation enhancer, and a carrier, are disclosed. ...
07/17/2007
7220414Degradable polyacetal polymers
Degradable polyacetal polymers and functionalized degradable polyacetal polymers have properties favorable for use in pharmaceutical and biomedical applications. The degradable polyacetal polymers are relatively stable at physiological pH with favorable biodistribut...
05/22/2007
7199098Copolymer-1 improvements in compositions of copolymers
The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons. ...
04/03/2007
7173073Ophthalmic devices containing heterocyclic compounds and methods for their production
This invention relates to ophthalmic devices and methods for their production where the ophthalmic device contain a polymer and at least one heterocyclic compound comprising at least one N—Cl and/or N—Br bond. ...
02/06/2007
7125490Porous filter
A filter has a longitudinal axis with an inner diameter defined by a hollow longitudinally extending center. The filter has fingers extend radially outwardly arcuately from the longitudinal axis. The fingers have base ends near the longitudinal axis and outer edges ...
10/24/2006
7098166Catalyst for preparing fluorine-containing alcohol compound and a process for preparation of fluorine-containing alcohol compound
A process for preparing a fluorine-containing alcohol compound, the process comprising the step of reacting water with a halogenated fluorine compound in the presence of a catalyst for preparing a fluorine-containing alcohol compound, the catalyst obtained by suppor...
08/29/2006
7083732Method and installation for removal of metal cations from a liquid by resins with polyazacycloalkanes grafted on a support
The invention is related to a method and an installation for removal of metal cations contained in a liquid, in which said liquid is brought into contact at a temperature greater than or equal to 60° C. with a chelating ion exchange resin formed from a polyazacyclo...
08/01/2006
7056500Polymer conjugates of opioid antagonists
The invention provides polymer conjugates of opioid antagonists comprising a polymer, such as poly(ethylene glycol), covalently attached to an opioid antagonist. The linkage between the polymer and the opioid antagonist is preferably hydrolytically stable. The inven...
06/06/2006
7041280Aryl boronate functionalized polymers for treating obesity
Disclosed are polymers comprising one or more phenyl boronate ester, boronamide or boronate thioester groups. The phenyl boronate ester, boronamide and boronate thioester groups are represented by one of the following structural formulas:
05/09/2006
7008537Microporous filter media, filtration systems containing same, and methods of making and using
The invention is directed to a microbiological interception enhanced filter medium, preferably having an adsorbent prefilter located upstream from the filter medium. Preferably, the prefilter is adapted to remove natural organic matter in an influent prior to the in...
03/07/2006
6951953Tumor selective and biodegradable polyphosphazene-platinum(II) conjugate antitumor agent, and preparation method thereof
Disclosed are a new class of a polyphosphazene-platinum(II) conjugate antitumor agent having high tumor tissue selectivity due to its enhanced permeability and retention effect to tumor tissues, and a preparation method thereof: ...
10/04/2005
6939539Copolymer-1 improvements in compositions of copolymers
The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons. ...
09/06/2005
6620847Copolymer-1 improvements in compositions of copolymers
The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons....
09/16/2003
6610284Preparation for prevention and healing of inflammation affections
A preparation for prevention and healing of inflammation affections comprising in an amount of 0.1 to 99.9% by weight derivatives of sterically hindered amines selected from the group consisting of: soluble polymers or copolymers prepared by radical polym...
08/26/2003
6605270Iron-binding polymers for oral administration
Iron binding polymers are provided for decreasing the absorption of iron from the gastrointestinal tract. The polymers are orally administered, and are useful for treatment of iron overload disorders....
08/12/2003
6596267Methods and compositions to prevent formation of adhesions in biological tissues
The invention discloses materials that adsorb readily to the surfaces of body tissues in situ and provide a steric barrier between such tissues, so that tissue adhesions, which typically form following surgical procedures, are minimized. These materials c...
07/22/2003
6566406Biocompatible crosslinked polymers
Biocompatible crosslinked polymers, and methods for their preparation and use, are disclosed in which the biocompatible crosslinked polymers are formed from water soluble precursors having electrophilic and nucleophilic groups capable of reacting and cros...
05/20/2003
6555656Covalent modification of abnormal prion protein
A prion-physiological structure and associated method of formation. A provided abnormal prion has a transforming power over a normal prion to convert the abnornal prion into defective prion that mimics the abnormal prion. A linker molecule is then bonded ...
04/29/2003
6497868Graft polymer and moulded medical articles employing this
The present invention relates to graft polymer which is characterized in that it is formed by graft polymerization of structural units containing. a quaternary ammonium group represented by general formula (A), ##STR1## (R2 and R3 ea...
12/24/2002
6444199Solid borate-diol interaction products for use in wounds
Borate-diol reaction products for wound healing are disclosed. The product is obtained by reacting 0.01-1% by weight of borate with 1-10% by weight of a mixture polyvinyl alcohols. A 1% of the polyvinyl alcohols have viscosities of 25-30 mPa s and 3-10 mP...
09/03/2002
6359011Denaturants for sympathomimetic amine salts
The instant invention makes impractical the use of sympathomimetic amine compositions in illicit drug production. More specifically, the preparation of methamphetamine from the disclosed pseudoephedrine hydrochloride formulations is inhibited. The present...
03/19/2002
6264936Contact-killing non-leaching antimicrobial materials
An antimicrobial material is described which can be used to form on the surface on a substrate a non-leaching antimicrobial coating or layer which kills microorganisms on contact. The non-leaching antimicrobial coating or layer is a unique combination of ...
07/24/2001
6136334Medical uses of in situ formed gels
Balanced pH, hyperosmotic, hypoosmotic, or isoosmotic gels are ideal vehicles for drug delivery. They are especially suited for topical body cavity or injection application of drugs or diagnostic agents; for drug or diagnostic agent delivery to the eye of...
10/24/2000
6048898Copolymer-1 improvements in compositions of copolymers
The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons....
04/11/2000
6039965Surfanctants for reducing bacterial adhesion onto surfaces
A method for inhibiting microbial colonization of a surface in contact with an aqueous system is disclosed, which comprises adding to the system an amount of at least one compound including repeating ethylene oxide units....
03/21/2000
5981589Copolymer-1 improvements in compositions of copolymers
The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons....
11/09/1999
5965117Water-bouyant particulate materials containing micronutrients for phytoplankton
Water-buoyant compositions comprising a source of micronutrients for photosynthetic phytoplankton growth are useful for stimulating photosynthetic phytoplankton growth in ocean areas devoid of such growth when deployed on ocean surfaces as floating partic...
10/12/1999
5958443Medical uses of in situ formed gels
Balanced pH, hyperosmotic, hypoosmotic, or isoosmotic gels are ideal vehicles for drug delivery. They are especially suited for topical body cavity or injection application of drugs or diagnostic agents; for drug or diagnostic agent delivery to the eye of...
09/28/1999
5928665Wound dressing including polyvinyl acetal sponge material
A method for producing an improved antimicrobial material thereby producing a soft, dry, iodine/acetalized polyvinyl alcohol complex sponge material having a pleasing yellow-gold coloration which self-indicates activation of the antimicrobial elements in ...
07/27/1999
5869099Cosmetic composition with polymer-bound benzophenone chromophores
A cosmetic composition comprises a polymer with the repeating structural unit (I) ##STR1## where R and R' can be identical or different and are H, alkali metal, ammonium, C1 -C30 alkyl, X is a direct linkage, C1 -C
02/09/1999
5833974Method of enhancing the effective life of oxygen-delivery agents
A method of increasing the effective life of oxygen-delivery agents is described. The method involves administering an oxygen-enriched atmosphere to a subject that has received the oxygen-delivery agent at a predetermined time....
11/10/1998
5817277Method and composition for disinfecting contact lenses
The present invention covers a method for disinfecting a contact lens including contacting the lens with an isotonic aqueous solution comprising 0.6 to 2 weight percent tromethamine (preferably 0.8 to 1.5 percent) for a time sufficient to disinfect the le...
10/06/1998
5800808Copolymer-1 improvements in compositions of copolymers
The present invention relates to an improved composition of copolymer-1 comprising copolymer-1 substantially free of species having a molecular weight of over 40 kilodaltons....
09/01/1998
5795567Polyamines and method for preparation thereof
Cross-linked controlled density polyamines which are water-insoluble and swell at pH values up to about 8 are shown. These polyamines are useful in site-specific drug delivery systems....
08/18/1998
5756045Method and composition for disinfecting contact lenses
The present invention covers a method for disinfecting a contact lens including contacting the lens with an isotonic aqueous solution comprising 0.6 to 2 weight percent tromethamine (preferably 0.8 to 1.5 percent) for a time sufficient to disinfect the le...
05/26/1998
5744150Softened antimicrobial sponge material with color change indication of antimicrobial activity
A method for producing an improved antimicrobial material thereby producing a soft, dry, iodine/acetalized polyvinyl alcohol complex sponge material having a pleasing yellow-gold coloration which self-indicates activation of the antimicrobial elements in ...
04/28/1998
5702696Iron-binding polymers for oral administration
Iron binding polymers are provided for decreasing the absorption of iron from the gastrointestinal tract. The polymers are orally administered, and are useful for treatment of iron overload disorders....
12/30/1997
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