...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."
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7435380 | Pseudo-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 |
| 7316811 | Multi-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 |
| 7287650 | Structures 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 |
| 7244703 | Pharmaceutical 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 |
| 7220414 | Degradable 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 |
| 7199098 | Copolymer-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 |
| 7173073 | Ophthalmic 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 |
| 7125490 | Porous 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 |
| 7098166 | Catalyst 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 |
| 7083732 | Method 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 |
| 7056500 | Polymer 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 |
| 7041280 | Aryl 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 |
| 7008537 | Microporous 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 |
| 6951953 | Tumor 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 |
| 6939539 | Copolymer-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 |
| 6620847 | Copolymer-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 |
| 6610284 | Preparation 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 |
| 6605270 | Iron-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 |
| 6596267 | Methods 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 |
| 6566406 | Biocompatible 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 |
| 6555656 | Covalent 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 |
| 6497868 | Graft 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 |
| 6444199 | Solid 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 |
| 6359011 | Denaturants 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 |
| 6264936 | Contact-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 |
| 6136334 | Medical 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 |
| 6048898 | Copolymer-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 |
| 6039965 | Surfanctants 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 |
| 5981589 | Copolymer-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 |
| 5965117 | Water-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 |
| 5958443 | Medical 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 |
| 5928665 | Wound 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 |
| 5869099 | Cosmetic 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 |
| 5833974 | Method 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 |
| 5817277 | Method 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 |
| 5800808 | Copolymer-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 |
| 5795567 | Polyamines 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 |
| 5756045 | Method 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 |
| 5744150 | Softened 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 |
| 5702696 | Iron-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 |