Patents Represented by Attorney Barry Kramer
  • Patent number: 6162926
    Abstract: The invention is directed to multiply-substituted fullerene derivatives of novel configurations, and methods for their preparation and use. The methods involve the combinatorial synthesis of a library of fullerene derivatives and comprises the steps of forming a mixture of fullerene derivatives by reacting the C.sub.n fullerene with two or more reactive precursor compounds, and removing the unreacted compounds to yield the fullerene derivatives having the desired activity. Methods for the identification and screening of a combinatorial library of fullerenes by .sup.3 He-nuclear magnetic resonance and electrospray mass spectrometry to define members with the optimal desired activity are also provided.
    Type: Grant
    Filed: November 13, 1997
    Date of Patent: December 19, 2000
    Assignee: Sphere Biosystems, Inc.
    Inventors: Randall B. Murphy, Stephen R. Wilson, Quing Lu
  • Patent number: 5318845
    Abstract: A highly oriented, undrawn, conductive, composite filament is provided, which is white or colorless and has antistatic properties durable over a long period when clothing utilizing the fiber are actually put on and washed. The filament is a sheath-core composite filament comprising a sheath of a fiber-forming thermoplastic polymer (A) and a core of a composition (B) comprising a conductive material which comprises a conductive metal oxide and a thermoplastic polyamide, having a core resistance of not more than 9.times.10.sup.10 .OMEGA./cm.multidot.filament, the composite filament maintaining a critical elongation--an elongation reached in the course of extending a composite filament at which the core resistance exceeds 1.times.10.sup.11 .OMEGA./cm.multidot.filament at a D.C. voltage of 1 kV--of at least 5% and a shrinkage in hot water at 100.degree. C. of not higher than 20%.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: June 7, 1994
    Assignee: Kuraray Co., Ltd.
    Inventors: Kazuhiko Tanaka, Yoshiteru Matsuo, Eiichirou Nakamura, Shoji Asano, Masao Kawamoto
  • Patent number: 5316951
    Abstract: A lytic reagent composition highly selective in its interactions with the cell membranes of white blood cells and also provides a method of using the reagent composition in a particle analyzing system to effect a significantly improved white blood cell differential determination. The lytic reagent composition is characterized by an ability to selectively shrink the white blood cells into the increasing size order of lymphocytes, basophils, monocutes, eosinophils and neutrophils, and effect a five component separation of these major subpopulations of white blood cells on the histogram of an automated blood analyzer when used in conjunction with a suitable blood diluent.
    Type: Grant
    Filed: July 22, 1993
    Date of Patent: May 31, 1994
    Inventors: Edward L. Carver, Jr., Diane D. Carver, Mary P. Skiptunas
  • Patent number: 5302417
    Abstract: An aqueous dispersion comprising a dispersoid of an ethylene-vinyl alcohol copolymer having an ethylene content of 15 to 65 mole % and a dispersion stabilizer of a saponified product of an ethylene-vinyl ester copolymer having an ionic group and having an ethylene content of 10 to 70 mole % and a saponification degree of at least 80%. According to the present invention, aqueous dispersions with high solid concentration and having excellent stability during storage or upon use. The film obtained by applying and then drying the aqueous dispersion has excellent gas barrier properties.
    Type: Grant
    Filed: August 9, 1993
    Date of Patent: April 12, 1994
    Assignee: Kurarav Co., Ltd.
    Inventors: Junnosuke Yamauchi, Akimasa Aoyama, Toshio Tsuboi, Satoshi Hirofuji, Takeshi Moritani
  • Patent number: 5279379
    Abstract: A combined propulsion and lift unit for an air-cushion vehicle is provided comprising an elongate shaft mounted for rotation about its central longitudinal axis, bearings for rotatably supporting the shaft, an axial wheel with two or more blades mounted on the shaft for rotation therewith, a first housing extending peripherally about the shaft, the housing provided with an air inlet and an air outlet, a drive device connected to the shaft for rotating same at a selected speed, a centrifugal fan wheel mounted on the shaft for rotation therewith, the fan wheel provided with an air inlet, the fan wheel located inside the first housing, and a second housing extending about the perimeter of the axial wheel and the first housing, the second housing having a larger diameter than the first housing thereby defining an air passageway therebetween, the second housing provided with an air inlet and an air outlet.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: January 18, 1994
    Assignee: Plasticair Inc.
    Inventor: Richard A. Sixsmith
  • Patent number: 5276068
    Abstract: A polycarbonate dimethacrylate which is the condensation product of 2 parts of hydroxyalkylmethacrylate of the formula ##STR1## in which A is C.sub.1 -C.sub.6 alkylene, and 1 part of a bis(chloroformate) of the formula ##STR2## in which R is C.sub.2 -C.sub.5 alkylene having at least two carbon atoms in its principal chain and n is an integer from 1 to 4, is usable, admixed with a secondary monomer suitable for dental applications, such as BIS-GMA; PUDMA or the like, as an adhesive system for dental restorative materials. Particularly useful is the novel condensation product of 2-hydroxyethylmethacrylate and triethylene glycol bis(chloroformate).
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: January 4, 1994
    Assignee: Jeneric/Pentron, Inc.
    Inventor: Samuel Waknine
  • Patent number: 4576671
    Abstract: This invention relates to an improvement in the method of manufacturing alate medical needles. The base part of a needle is inserted into a thermoplastic resin tube and the inserted portion is set in a wing-forming mold. The thermoplastic resin is heated to mold wings integral with the tube. Since the molding of the wings and their connection to the tube can be accomplished simultaneously, this method enables high-speed continuous manufacture which is impossible with conventional methods. Heating of the thermoplastic resin is preferably conducted by high-frequency dielectric heating.
    Type: Grant
    Filed: June 29, 1984
    Date of Patent: March 18, 1986
    Inventor: Hirotaka Shimanaka
  • Patent number: 4576988
    Abstract: A melt molding material which comprises a saponified product of a silicon-containing ethylene-vinyl acetate copolymer. When this melt molding material is formed into a sheet, said sheet is excellent in extensibility and thus suitable for deep forming. The decrease in gas barrier properties is small even under high moisture conditions, and its stress cracking resistance is excellent.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: March 18, 1986
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshinari Tanaka, Akimasa Aoyama, Takeshi Moritani, Kenji Satoh, Takuji Okaya
  • Patent number: 4576330
    Abstract: The present invention embodies an upright cylindrical element or peg on the horizontal flange of a tray which is received in snap, reversible locking engagement within the closed bore of a cylindrical female element provided in a corresponding location on the horizontal flange on a lid so that the lid and tray can be firmly and securely locked together. The male and female elements are formed during the thermoforming process used to form the lid and tray wherein the peg or male snap part is provided with an enlarged diameter portion at its closed top end or head which is received in snap engagement past a smaller diameter annular rim formed in the opening to the bore of the female cylindrical element. The female element also includes a side wall which is tapered from bottom to top for receiving the head of the peg or mating cylindrical male element which snaps over and past the annular rim.
    Type: Grant
    Filed: March 11, 1985
    Date of Patent: March 18, 1986
    Assignee: Inline Plastics Corporation
    Inventor: Frank Schepp
  • Patent number: 4577032
    Abstract: This invention relates to 1-benzoylhalomethyl-imidazole compounds and processes for their production.The 1-benzoylhalomethylimidazole compounds are represented by the following formula: ##STR1## wherein R is a hydrogen atom or a lower alkyl group, X is a halogen atom and X' is a hydrogen atom or a halogen atom. They are very useful as antifungal agents, insect attractants and the like.
    Type: Grant
    Filed: June 15, 1984
    Date of Patent: March 18, 1986
    Inventors: Takayuki Fujita, Yoshikazu Kitazawa, Tadashi Akita, Isamu Tani
  • Patent number: 4552759
    Abstract: Effective immunity against coccidiosis can be imparted to poultry if the birds are reared on a regular diet containing added viable sporulated coccidia oocysts at a level sufficient only to induce sub-clinical infection. Preferably the oocyst-containing diet is presented to the birds as soon as they are able to ingest solid food, and contains from 10 to 10,000 oocysts per kg of nutrient feed material. The simultaneous administration of an anti-coccidial drug at a curative level can help to control the immunity-producing infection. The oocyst-containing feedstuff of the invention can be prepared using solid free-flowing pre-mixes or aqueous concentrates, containing appropriate numbers of oocysts together with edible thickening agents. The oocysts can be protected against loss of viability through dehydration by being encapsulated. Growth of the immunized birds is sustained even when they are exposed to a severe oocyst challenge sufficient to induce serious infection in unimmunized birds.
    Type: Grant
    Filed: April 27, 1983
    Date of Patent: November 12, 1985
    Assignee: International Octrooi Maatschappij "Octropa" B.V.
    Inventors: Paul J. Davis, James F. Reynolds
  • Patent number: 4547531
    Abstract: A chemically curable dental restorative material is provided comprising a two-component paste-paste system wherein:(i) a first initiator-containing paste system comprises from about 15 to 40% by weight of a polymerizable methacrylic ester monomeric system comprising a cross-linking methacrylate monomer, at least one co-monomeric methacrylate diluent and a free radical-generating catalyst, and from about 60 to 85% by weight of an inorganic filler prepared by wet milling, surface etching milling and a silanizing milling; and(ii) a second accelerator-containing paste system comprises from about 15 to 31% by weight of a polymerizable methacrylic ester monomeric system comprising a cross-linking methacrylate monomer, at least one co-monomeric methacrylate diluent and an inorganic amine accelerator and from 69 to 85% by weight of an inorganic filler prepared by wet milling, surface etching milling and a silanizing milling;said first and second paste systems being admixed in substantially equal proportions to form t
    Type: Grant
    Filed: August 2, 1984
    Date of Patent: October 15, 1985
    Assignee: Pentron Corporation
    Inventor: Samuel Waknine
  • Patent number: 4547289
    Abstract: A filtration apparatus for removing undesirable components from a solution to be treated, comprises a module in which a number of hollow fibers are fixed at one end thereof by cast-molding materials, and is opened at the end portion above described and closed at another end portion thereof, in which said solution to be treated can be kept from leaking out of a mechanically sealed portion. Any defect in the sealed portion can be detected from the outside by the provision of an opening which leads the leaked solution to the outside of the apparatus, instead of allowing it to combine with the filtrate. The apparatus is preferably used for the manufacture of purified water which is free from bacteria, pyrogene, and the like. Ultra-purified water of remarkably high purity can be obtained when the apparatus is used as a check filter in a process for manufacturing ultra-purified water.
    Type: Grant
    Filed: February 27, 1984
    Date of Patent: October 15, 1985
    Inventors: Yoshihiro Okano, Takehiko Okamoto, Akio Ohmory
  • Patent number: 4544548
    Abstract: Effective immunity against coccidiosis can be imparted to poultry if the birds are reared on a regular diet containing added viable sporulated coccidia oocysts at a level sufficient only to induce sub-clinical infection. Preferably the oocyst-containing diet is presented to the birds as soon as they are able to ingest solid food, and contains from 10 to 10,000 oocysts per kg of nutrient feed material. The simultaneous administration of an anti-coccidial drug at a curative level can help to control the immunity-producing infection. The oocyst-containing feedstuff of the invention can be prepared using solid free-flowing pre-mixes or aqueous concentrates, containing appropriate numbers of oocysts together with edible thickening agents. The oocysts can be protected against loss of viability through dehydration by being encapsulated. Growth of the immunized birds is sustained even when they are exposed to a severe oocyst challenge sufficient to induce serious infection in unimmunized birds.
    Type: Grant
    Filed: April 27, 1983
    Date of Patent: October 1, 1985
    Assignee: Internationale Octrooi Maatschappij "Octropa" B.V.
    Inventors: Paul J. Davis, James F. Reynolds
  • Patent number: 4544359
    Abstract: In a dental restorative material comprising 20-30% by weight of a visible light polymerizable methacrylic ester monomeric system, from about 65-79% by weight of an inorganic filler and from about 1-5% by weight of collidal fumed silica; said inorganic filler having an average particle size diameter ranging from about 0.5 to 5 microns and said collidal fumed silica having an average particle size ranging from about 0.01 to about 0.05 micron, the improvement comprising subjecting the filler to a series of milling steps comprising (1) wet milling in aqueous medium having a pH of 5-7; (2) surface etch milling in an aqueous etchant medium and (3) a silanizing milling in a silane solution.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: October 1, 1985
    Assignee: Pentron Corporation
    Inventor: Samuel Waknine
  • Patent number: 4539769
    Abstract: A mount for attaching a device to a firearm includes a longitudinal base adapted to carry the device to be mounted. The base has a track extending along a portion of the length thereof and a block is slidably mounted in the track. The block is biased toward the front end of the base by a spring. The block is adapted to be attached to a first fixed member at one end of a firearm barrel. The rear end of the base is adapted to be attached to a second fixed member at the other end of the firearm barrel. When properly mounted between the ends of the firearm barrel, the mount is held in place by the action of the spring, which forces the block attachment against the first fixed member and the rear attachment against the second fixed member.
    Type: Grant
    Filed: June 2, 1983
    Date of Patent: September 10, 1985
    Assignee: Hydra Systems International, Inc.
    Inventors: Frederick G. Stevens, Robert J. Heideman, Jerry B. Holden
  • Patent number: 4539177
    Abstract: A dental alloy for use in porcelain-fused-to-metal restorations including palladium, cobalt, gallium, gold, aluminum, copper, zinc and ruthenium or rhenium. The cobalt controls the coefficient of thermal expansion of the alloy to permit the use of the alloy with commercially available porcelains having a variety of thermal coefficients. The zinc serves as a scavenger during formation and casting of the alloy. The aluminum protects the alloy from absorbing gases during torch melting and during the porcelain firing process. The ruthenium or rhenium provides grain refining for the alloy to increase its elongation, tensile strength, and thus toughness. The alloy with ruthenium or rhenium as a grain refining agent must be made in a protective environment to avoid the formation of bubbles in the porcelain during the porcelain firing process.
    Type: Grant
    Filed: January 25, 1984
    Date of Patent: September 3, 1985
    Assignee: Jeneric Industries, Inc.
    Inventor: Arun Prasad
  • Patent number: 4518564
    Abstract: A dental alloy for porcelain-fused-to-metal restorations is provided which consists essentially of, on a weight basis, about 60-90% palladium, an effective amount of ruthenium up to about 2% for the purpose of grain-refining the alloy, an effective amount of copper up to about 30% for the purpose of lowering the melting point and raising the thermal expansion, up to about 15% indium, up to about 16% tin, up to about 12% zinc, up to about 5% gold, and from about 0.05 to about 0.25% boron or calcium boride, the total of said constituents being 100%, wherein the sum of the copper, indium, tin and zinc concentrations is greater than about 18%, the sum of the indium, tin and zinc concentrations is greater than about 10%, and the sum of the indium and zinc concentrations is greater than about 5%, such that said alloy exhibits a melting point between about 1100.degree. C. and 1400.degree. C. and a coefficient of thermal expansion of about 0.66 to 0.72 at 500.degree. C.
    Type: Grant
    Filed: May 30, 1984
    Date of Patent: May 21, 1985
    Assignee: Jeneric Industries, Inc.
    Inventor: Arun Prasad
  • Patent number: 4504531
    Abstract: An aluminum atom- and monocarboxylic acid residue-containing polyester is provided. Using the polyester as an adhesive or a base, laminates and laminated hollow vessels which comprise, as the constituent elements, the polyester and an ethylene-vinyl alcohol copolymer can be produced. The laminates and laminated hollow vessels are suitable for use as packaging materials or containers for food and drink.
    Type: Grant
    Filed: May 30, 1984
    Date of Patent: March 12, 1985
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshifumi Murata, Keishiro Igi, Hiroshi Narukawa, Masao Uetsuki, Satoshi Bando, Shuji Kawai, Kenji Shirano
  • Patent number: D342992
    Type: Grant
    Filed: May 10, 1991
    Date of Patent: January 4, 1994
    Inventor: Barry Robertson