Patents Examined by Isis A.D. Ghali
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Patent number: 6620430Abstract: A plaster comprising a styrene-isoprene-styrene block copolymer 10-40 wt %, a rosin-based resin 5-30 wt %, a plasticizer 20-70 wt %, polyisobutylene 6-40 wt %, an antioxidant 0.1-5 wt %, and felbinac as a medicinally effective component 1.1-10 wt %, wherein the plaster does not contain crotamiton which is a solubilizer for the felbinac, the felbinac is uniformly dispersed in a semi-solubilized state in the plaster, wherein solubilized felbinac and microcrystalline felbinac coexist in the plaster, and a thickness of the plaster is 50-300 &mgr;m.Type: GrantFiled: May 18, 2001Date of Patent: September 16, 2003Assignee: Hisamitsu Pharmaceutical Co., Inc.Inventors: Yasunori Takada, Koji Tanaka, Yasuhiro Ikeura
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Patent number: 6607746Abstract: An adhesive composition having dispersed therein a broad spectrum antimicrobial agent for use in medical applications, such as an adhesive for surgical drapes, wound dressings and tapes. The adhesive is composed of acrylic polymers, tackifiers and a preferred antimicrobial agent, diiodomethyl-p-tolylsulfone. The adhesive composition is essentially solventless and capable of application in a hot melt process while maintaining stability at elevated temperatures in the range of 275° F. to 350° F., which not only allows hot melt application, but allows for ethylene oxide sterilization under heat stress.Type: GrantFiled: July 24, 2002Date of Patent: August 19, 2003Assignee: Medical Concepts Development, Inc.Inventors: David D. Cox, Robert E. Lund, Leland W. Annett
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Patent number: 6506394Abstract: The present invention relates to a combination for surface treatment of a substrate, e.g. a nonwoven web, used in personal care product applications. The surface treatment combination not only provides adequate fluid handling properties, but also provides a topical delivery system effective in depositing a thin, tenacious and substantially continuous coating of a botanical extract on skin by an aqueous emulsion mediated dissolution of the agent from a substrate with subsequent transfer and deposition onto the skin. Coatings of the botanical extract on the skin resist removal, thereby preventing damage to the natural skin barrier and providing a protective barrier against chemically- and biochemically-induced skin damage.Type: GrantFiled: May 12, 2000Date of Patent: January 14, 2003Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Ali Yahiaoui, Dennis Stein Everhart, Wade Bolton May
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Patent number: 6503531Abstract: An adhesive composition having dispersed therein a broad spectrum antimicrobial agent for use in medical applications, such as an adhesive for surgical drapes, wound dressings and tapes. The adhesive is composed of acrylic polymers, tackifiers and a preferred antimicrobial agent, diiodomethyl-p-tolylsulfone. The adhesive composition is essentially solventless and capable of application in a hot melt process while maintaining stability at elevated temperatures in the range of 275° F. to 350° F., which not only allows hot melt application, but allows for ethylene oxide sterilization under heat stress.Type: GrantFiled: April 17, 2001Date of Patent: January 7, 2003Assignee: Medical Concepts Development, Inc.Inventors: David D. Cox, Robert E. Lund, Leland W. Annett
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Patent number: 6479061Abstract: The present invention pertains to an airlaid composite which is made of pulp fibers, at least about 2% by weight bicomponent fiber, and moisture. This airlaid composite is unique in that a uniformly even composite is made which upon calendering, becomes a thin structure which maintains significant absorbency when saturated. The bicomponent fibers of the present invention include a first polymer component and a second polymer component, and the first polymer component melts at a temperature lower than the melting temperature of the second polymer component. Mixing of the pulp fibers with the bicomponent fibers is done in such a way that the fibers are evenly dispersed in the airlaid composite. This airlaid composite is then heated such that at least a portion of the first polymer component of the bicomponent fiber is melted, which bond the bicomponent fibers to many of the pulp and bicomponent fibers when cooled.Type: GrantFiled: October 26, 2001Date of Patent: November 12, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Monica C. Fontenot, Terry Pearce Ford, James Jay Tanner, Jonathan Robert Owen, John Joseph Lassig, Barbara Jean Burns, Alan Grady Shuman, Victor Michael Gentile
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Patent number: 6476074Abstract: Compositions and methods for treatment of impotence or erectile dysfunction employ prostaglandins that are selective EP2 or EP4 prostanoid receptor agonists. The compositions can be formulated for intracavernous injection, or for transurethral or transdermal application.Type: GrantFiled: April 10, 2000Date of Patent: November 5, 2002Assignee: Synphora ABInventors: Johan Stjernschantz, Bahram Resul
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Patent number: 6461628Abstract: A hydratable, highly absorbent keratin solid fiber or powder capable of absorbing a large weight excess of water may be produced by partially oxidizing hair keratin disulfide bonds to sulfonic acid residues and reacting the sulfonic acid residues with a cation. The neutralized suspension can be filtered, washed, and dried, leaving keratin solid which can be shredded into fibers and further ground into powder. Addition of water to the solid produces a hydrogel. The powder or hydrogel may be useful as an absorbent material, as a therapeutic for skin, or as an excipient. The keratin materials can be incorporated into nonwoven films. The hydrogel may be used as biocompatible viscoelastic filler for implant applications. Both the hydrogel and nonwoven materials are also suitable for use as tissue engineering scaffolds.Type: GrantFiled: June 5, 2000Date of Patent: October 8, 2002Assignee: Keraplast Technologies, Ltd.Inventors: Cheryl R. Blanchard, Mark E. Van Dyke, Scott F. Timmons, Arlene J. Siller-Jackson, Robert A. Smith
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Patent number: 6153215Abstract: A dressing for dosing one or more medicaments comprising at least one medicament containing layer (2, 2a, 2b) and a barrier layer (1, 1a, 1b) arranged between the medicament containing layer and the release face (6, 6a), said barrier layer consisting of a continuous hydrophobic phase and a discontinuous hydrophilic phase which is dispersed therein and which is water soluble or water swellable. Desired medicament release rates and release profiles within very wide limits may be obtained with the dressing.Type: GrantFiled: February 27, 1995Date of Patent: November 28, 2000Assignee: Colorplast A/SInventors: Peter Boman Samuelsen, Dorte Ulrik Nielsen
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Patent number: 6139867Abstract: A medical adhesive sheet comprising a support having a laminate structure comprising a non-porous sheet and a porous-sheet, and a pressure-sensitive layer comprising an acrylic polymer prepared by polymerizing an alkyl (meth)acrylate as a main component monomer, and an organic liquid component which is compatible with the acrylic polymer, formed on the porous sheet side of the support, the layer being subjected to a crosslinking treatment, wherein the pressure-sensitive adhesive layer is embedded in the porous sheet, reaching the laminate interface between the non-porous sheet and the porous sheet. The medical adhesive sheet has improved anchoring property of its pressure-sensitive adhesive layer to the support while exhibiting a good balance between adhesion to the skin and low irritation to the skin.Type: GrantFiled: August 26, 1994Date of Patent: October 31, 2000Assignee: Nitto Denko CorporationInventors: Takateru Muraoka, Takashi Kinoshita, Hitoshi Akemi, Saburo Otsuka