Patents by Inventor Ira D. Hill

Ira D. Hill has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 6545077
    Abstract: Various monofilament dental tapes with substantive coatings including: solutions of block copolymers and non-ionic surfactants, melt emulsions of waxes emulsified in surfactants and inverse melt emulsions of surfactants emulsified in a continuous wax phase, and their methods of manufacture are described.
    Type: Grant
    Filed: August 23, 2001
    Date of Patent: April 8, 2003
    Assignee: International Tape Partners, LLC
    Inventors: Ira D. Hill, Dale G. Brown
  • Publication number: 20020144704
    Abstract: Molecularly oriented, thermoplastic elastomeric dental tapes extruded with a melt spinning extrusion carried out at draw ratios from between about 4:1 and about 7.5:1 and draw temperatures from between about 80° and 265° C. having: elongation at break of less than about 50%, an elastic limit of less than about 25% and enhanced tape flex-twist index from between about 2.5 and about 5, with the capacity to release substantive, flake-free, saliva soluble coatings during flossing.
    Type: Application
    Filed: August 23, 2001
    Publication date: October 10, 2002
    Inventors: David Barlow, Dale G. Brown, Ian Roberts, Ira D. Hill, James McKenzie Hill
  • Publication number: 20020128362
    Abstract: Various monofilament dental tapes with substantive coatings including: solutions of block copolymers and non-ionic surfactants, melt emulsions of waxes emulsified in surfactants and inverse melt emulsions of surfactants emulsified in a continuous wax phase, and their methods of manufacture are described.
    Type: Application
    Filed: August 23, 2001
    Publication date: September 12, 2002
    Inventors: Ira D. Hill, Dale G. Brown
  • Publication number: 20020083956
    Abstract: Disclosed are coated monofilament dental tapes with physical improvements including patient-friendly edges and self-indicating releasable coatings.
    Type: Application
    Filed: August 23, 2001
    Publication date: July 4, 2002
    Inventor: Ira D. Hill
  • Patent number: 6138314
    Abstract: A toothbrush having an improved cleaning and abrasion efficiency, wherein the bristles are comprised of synthetic thermoplastic polymeric compositions, and contain longitudinal channels extending along the length thereof, having a depth sufficient to entrap a quantity of abrasive particles such that during brushing with a toothpaste, contact between the channel entrapped abrasive particles and the surfaces of the teeth is improved, resulting in a cleaning efficiency coefficient, CEC, above about 1.5 and, an abrasion efficiency coefficient, AEC, above about 1.5, while demonstrating suitable bristle wearability.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: October 31, 2000
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Thomas Schiff, Ira D. Hill
  • Patent number: 6086373
    Abstract: A toothbrush having an improved cleaning and abrasion efficiency, wherein the bristles are comprised of synthetic thermoplastic polymeric compositions, and contain longitudinal channels extending along the length thereof, having a depth sufficient to entrap a quantity of abrasive particles such that during brushing with a toothpaste, contact between the channel entrapped abrasive particles and the surfaces of the teeth is improved, resulting in a cleaning efficiency coefficient, CEC, above about 1.5 and, an abrasion efficiency coefficient, AEC, above about 1.5, while demonstrating suitable bristle wearability.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: July 11, 2000
    Inventors: Thomas Schiff, Ira D. Hill
  • Patent number: 5993784
    Abstract: Low foaming therapeutic toothpastes containing a therapeutic substance, an abrasive, a humectant, a low foam surfactant, and/or a foam control agent having improved cleaning and abrasion performance wherein: packing of the abrasive into the channels of a channeled bristle toothbrush, and abrasive/tooth surface contact, are substantially free from surfactant bubble interference such that Cleaning Efficiency Coefficient and Abrasion Efficiency Coefficient values greater than about 1.1 are achieved along with improvements in therapeutic efficacy.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: November 30, 1999
    Assignee: WhiteHill Oral Technologies
    Inventor: Ira D. Hill
  • Patent number: 5733536
    Abstract: The present invention relates to various hair care products containing stable, dispersions of certain high viscosity silicones in certain surfactants; wherein:a. the dispersed silicones, which are insoluble in said surfactant, are oriented by the surfactant such that when dispersed in water they are particularly adept at forming oriented coatings on hair with enhanced substantivity, andb. the particle size of the dispersed silicone is from between about 0.1 and about 10 microns, with a particle size distribution such that from substantially all of the dispersed silicone is within this particle size range. These stable dispersions are described as ULTRAMULSION.TM. dispersions, which, together with their physical properties, when contained in hair care products, provide these hair care products with distinctive conditioning, moisturizing, protecting, etc. properties where the discontinuous silicone phase functions as a reservoir for various hair treatment substances.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 31, 1998
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Ira D. Hill, Peter P. Walters, Dale G. Brown
  • Patent number: 5733529
    Abstract: The present invention relates to various toothpastes containing, stable, dispersions of certain high viscosity silicones in certain surfactants; wherein:a. the dispersed silicones, which contain triclosan, 2,4,4'-triclosan-2'-hydroxy/epoxy/ether, are insoluble in said surfactant, are oriented by the surfactant such that when dispersed in water they are particularly adept at forming oriented, nonhelical coatings on surfaces of the mouth with enhanced substantivity, andb. the particle size of the dispersed silicone is from between about 0.1 and about 10 microns, with a particle size distribution such that from between about 80 and 95% of the dispersed silicone is within this particle size range.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 31, 1998
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Ira D. Hill, Peter P. Walters, Dale G. Brown
  • Patent number: 5730967
    Abstract: The present invention relates to various skin care products including cosmetics, over-the-counter (OTC) and prescription () drugs containing, stable, dispersions of certain high viscosity silicones in certain surfactants; wherein:a. the dispersed silicones, which are insoluble in said surfactant, are oriented by the surfactant such that when dispersed in water they are particularly adept at forming oriented, coatings on skin with enhanced substantivity, andb. the particle size of the dispersed silicone is from between about 0.1 and about 10 microns, with a particle size distribution such that from between about 80 and 95% of the dispersed silicone is within this particle size range. These stable dispersions are described as ULTRAMULSION.TM. dispersions, which, together with their physical properties, when contained in skin care products, provide these skin care products with distinctive, moisturizing, protecting, healing etc.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: March 24, 1998
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Ira D. Hill, Peter P. Walters, Dale G. Brown
  • Patent number: 5711935
    Abstract: The present invention relates to oral hygiene and specifically to an improved method for adding chemotherapeutic agents to dental floss containing several multi-fiber bundles, to methods of treating the oral cavity with the improved dental floss and to the improved dental flosses per se.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: January 27, 1998
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Ira D. Hill, Michael R. Schweigert
  • Patent number: 5711936
    Abstract: The present invention relates to various ingestible products containing stable, dispersions of certain high viscosity silicones in certain surfactants for use in treating mucus containing surfaces such as in the mouth, throat and stomach and intestine and the surface of the esophagus which contains no mucus.a. the dispersed silicones, which are insoluble in said surfactant, are oriented by the surfactant such that when dispersed in water they are particularly adept at forming oriented coatings on mouth, throat and esophagus and stomach surfaces with enhanced substantivity, andb. the particle size of the dispersed silicone is from between about 0.1 and about 10 microns, with a particle size distribution such that from substantially all of the dispersed silicone is within this particle size range. These stable dispersions are described as ULTRAMULSION.TM.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: January 27, 1998
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Ira D. Hill, Peter P. Walters, Dale G. Brown
  • Patent number: 5665374
    Abstract: The present invention relates to unique interdental delivery devices, other than dental floss, which are suitable for cleaning, massaging, and/or treating surfaces of teeth and gums including interproximal and subgingival areas; wherein these devices contain ULTRAMULSION.TM. dispersions of high viscosity silicones dispersed in surfactants, these dispersions are released into the oral cavity from these devices during use wherein the dispersed silicone:a. is insoluble in the surfactant and oriented so as to form coatings in the oral cavity with enhanced substantivity,b. functions as a reservoir for various lipid soluble and/or liquid dispersible ingredients to be released onto oral cavity surfaces, andc. has a particle size from between about 0.1 and about 10 microns with from between about 80% and about 95% of the particles within this range.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 9, 1997
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Ira D. Hill, Peter P. Walters, Dale G. Brown
  • Patent number: 5651959
    Abstract: The present invention relates to various oral care products containing, stable, dispersions of certain high viscosity silicones in certain surfactants; wherein:a. the dispersed silicones, which are insoluble in said surfactant, are oriented by the surfactant such that when dispersed in water they are particularly adept at forming oriented, coatings on surfaces of the mouth with enhanced substantivity, andb. the particle size of the dispersed silicone is from between about 0.1 and about 10 microns, with a particle size distribution such that from between about 80 and 95% of the dispersed silicone is within this particle size range. These stable dispersions are described as ULTRAMULSIONS, which, together with their physical properties, when contained in oral care products, provide these oral care products with enhanced substantivity to mouth surfaces, where the non continuous silicone phase functions as a reservoir for various active ingredients contained therein.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 29, 1997
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Ira D. Hill, Peter P. Walters, Dale G. Brown
  • Patent number: 5645841
    Abstract: The present invention relates to various oral care rinses containing, stable, dispersions of certain high viscosity silicones in certain surfactants; wherein:a. the dispersed silicones, which are insoluble in said surfactant, are oriented by the surfactant such that when dispersed in water they are particularly adept at forming oriented, coatings on surfaces of the mouth with enhanced substantivity, andb. the particle size of the dispersed silicone is from between about 0.1 and about 10 microns, with a particle size distribution such that from between about 80 and 95% of the dispersed silicone is within this particle size range. These stable dispersions are described as ULTRAMULSION.TM.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: July 8, 1997
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Ira D. Hill, Peter P. Walters, Dale G. Brown
  • Patent number: 5538667
    Abstract: The present invention relates to water-free, co-solvent free, stable, dispersions of certain polydimethylsiloxanes in certain nonionic, poloxamer surfactants; wherein:a. the dispersed polydimethylsiloxanes, which are insoluble in said surfactant, are oriented by the surfactant such that when dispersed in water they are particularly adept at forming oriented, monolayer coatings on various substrates, andb. the particle size of the dispersed polydimethylsiloxane is from between about 0.5 and about 10 microns, with a particle size distribution such that from between about 80 and 95% of the dispersed polydimethylsiloxane is within this particle size range. These stable dispersions are described as ultramulsions, which, together with their physical properties, distinguishes them from emulsions, microemulsions and solutions.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: July 23, 1996
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Ira D. Hill, Dale G. Brown
  • Patent number: 5380530
    Abstract: Disclosed are several oral hygiene preparations including plaque disrupting and gingivitis control preparations in the form of chewing gums, wherein a chewing gum is coated with a plaque disrupting emulsion containing an ingestible surfactant and a polydimethyl siloxane emulsified therein, and wherein the emulsion coating can further contain a therapeutic substance such as the gingivitis control substance stannous fluoride.
    Type: Grant
    Filed: December 29, 1992
    Date of Patent: January 10, 1995
    Assignee: WhiteHill Oral Technologies
    Inventor: Ira D. Hill
  • Patent number: 5284648
    Abstract: The invention relates to alcohol-free, oral pre-rinse and rinse emulsions containing cleaning and coating compositions that are non-irritating and low foaming thus allowing a residence time sufficient to condition teeth and gums and disruptively affect the plaque matrix. Such disruption allows for the reduction of plaque build-up by either of two efficacious and convenient mechanisms: (1) immediate removal of disrupted plaque matrix by normal brushing or (2) interruption of plaque forming activity in the mouth by frequently cleaning out plaque and plaque precursors, coupled with reduced attachment of plaque by altering the tooth surfaces with the coating compositions.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: February 8, 1994
    Inventors: Robert D. White, Ira D. Hill
  • Patent number: 5057306
    Abstract: The invention relates to the manufacturing of oral hygiene gels wherein a coating substance is emulsified with a surfactant using a hot-melt emulsion process and the resulting emulsion is subsequently gelled with a viscosifier.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: October 15, 1991
    Inventors: Ira D. Hill, Robert D. White
  • Patent number: 5057309
    Abstract: This invention describes ingestible, non-foaming, non-aqueous liquid and semi-solid oral hygiene preparations containing: a nonionic surfactant, a coating substance insoluble in said surfactant and a microbially active form of stannous fluoride.
    Type: Grant
    Filed: June 8, 1990
    Date of Patent: October 15, 1991
    Inventors: Ira D. Hill, Robert D. White