Patents by Inventor Dawn Smith
Dawn Smith 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).
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Publication number: 20120172478Abstract: The invention provide a method for making silicone hydrogel based on the Lightstream Technology from a monomer mixture with a curing time of less than about 100 seconds. The present invention is also related to silicone hydrogel contact lenses made according to methods of the invention.Type: ApplicationFiled: March 14, 2012Publication date: July 5, 2012Inventors: Frank Chang, Jürgen Vogt, John Dallas Pruitt, Xinming Qian, Dawn A. Smith, Angelika Maria Domschke, Troy Vernon Holland, Richard Charles Turek, Daqing Wu
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Patent number: 8211646Abstract: Genomic analysis of ovarian cancers demonstrated a regional chromosomal increase in expression and gene duplication. TGF-? stimulation indicated a link between SnoN RNA and TGF-?. In TIOSE, SnoN protein levels were reduced 15 min post TGF-?-stimulation, likely by proteosome-mediated degradation. SnoN inhibition decreased cell growth between 20 and 50% concurrent with increased p21 levels. Stable expression of SnoN led to growth arrest through induction of senescence. Collectively, these results implicate SnoN levels in multiple roles during ovarian carcinogenesis: promoting cellular proliferation in ovarian cancer cells and as a positive mediator of cell cycle arrest and senescence in non-transformed ovarian epithelial cells.Type: GrantFiled: November 16, 2009Date of Patent: July 3, 2012Assignee: University of South FloridaInventors: Meera Nanjundan, Gordon Mills, Dawn Smith
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Patent number: 8163206Abstract: The invention provide a method for making silicone hydrogel based on the Lightstream Technology from a monomer mixture with a curing time of less than about 100 seconds. The present invention is also related to silicone hydrogel contact lenses made according to methods of the invention.Type: GrantFiled: June 16, 2009Date of Patent: April 24, 2012Assignee: Novartis AGInventors: Frank Chang, Jürgen Vogt, John Dallas Pruitt, Xinming Qian, Dawn A. Smith, Angelika Maria Domschke, Troy Vernon Holland, Richard Charles Turek, Daqing Wu
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Publication number: 20120065331Abstract: The invention provides a silicone hydrogel contact lens including a hydrolyzable units. The hydrolyzable units can be converted by hydrolysis into a hydrophilic units which is capable of imparting the silicone hydrogel contact lens a hydrophilic surface without post-curing surface treatment. The invention also provides an actinically crosslinkable prepolymer including hydrolyzable units and use of the prepolymer of the invention. In addition, the invention provides a method for making wettable silicone hydrogel contact lens without posterior surface treatments other than hydrolysis.Type: ApplicationFiled: November 17, 2011Publication date: March 15, 2012Inventors: Frank Chang, Dawn A. Smith, Arturo N. Medina, Michael Hugh Quinn, L. Lawrence Chapoy
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Patent number: 8131333Abstract: This invention is generally related to a biocompatible sensor for detecting/measuring sugar, especially glucose, in an ocular fluid in a non-invasive or minimally invasive manner and a method for using the biocompatible sensor. A biocompatible sensor of the invention comprises, consists essentially, or consists of an ophthalmic device comprising a molecular sensing moiety which interacts or, reacts with sugar to provide an optical signal which is indicative of sugar level in an ocular fluid.Type: GrantFiled: August 6, 2004Date of Patent: March 6, 2012Assignee: EyeSense AGInventors: L. Lawrence Chapoy, Angelika Maria Domschke, Dawn Smith
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Publication number: 20120046382Abstract: The invention provide a new class of silicone-containing prepolymers containing dangling polysiloxane-containing polymer chains. This class of silicone-containing prepolymer is capable of being actinically crosslinked to form a silicone hydrogel material with a relatively high oxygen permeability, a reduced elastic modulus, and a relatively high ion permeability. The present invention is also related to silicone hydrogel contact lenses made from this class of silicone-containing prepolymers and to methods for making the silicone hydrogel contact lenses.Type: ApplicationFiled: October 28, 2011Publication date: February 23, 2012Inventors: Jian S. Zhou, Dawn A. Smith
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Publication number: 20120045837Abstract: Indicator inks, indicators formed by printing or otherwise utilizing the inks and host products utilizing the indicators are disclosed. Reactivity-enhancing adjuvants stimulate enhanced thermal reactivity of diacetylenic or other indicator agents capable of responding to ambient thermal conditions with a visual change signaling an end point. The diacetylenic or other agents may be sensitive or relatively insensitive to ambient temperatures. Use of a reactivity-enhancing adjuvant provides a useful means for adapting the reactivities of indicator agents to the response characteristics of prospective host products, for example perishables such as vaccines or fresh fish and maturables such as fruit, cheese and wine. Some exemplary adjuvants include low-temperature polymerization initiators, for example methyl ethyl ketone peroxide and polymerization accelerators, for example cobalt compounds. Such initiators and accelerators can also be used in combination.Type: ApplicationFiled: September 29, 2011Publication date: February 23, 2012Applicant: Temptime CorporationInventors: Thaddeus Prusik, Dawn Smith, Ray H. Baughman
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Publication number: 20120029111Abstract: The present invention provides an amphiphilic polysiloxane prepolymer which comprises hydrophilic monomeric units derived from at least one hydrophilic vinylic monomer, polysiloxane crosslinking units derived from at least one polysiloxane crosslinker having at least two terminal ethylenically-unsaturated groups, dangling polysiloxane chains each of which is terminated with one ethylenically unsaturated group, and chain-transfer units derived from a chain transfer agent other than a RAFT agent. A prepolymer of the invention is suitable for making hydrogel contact lenses. The present invention is also related to hydrogel contact lenses made from an amphiphilic polysiloxane prepolymer of the invention and to processes for preparing an amphiphilic polysiloxane prepolymer of the invention and for making silicone hydrogel contact lenses.Type: ApplicationFiled: July 29, 2011Publication date: February 2, 2012Inventors: Frank Chang, Robert Scott, Jinyu Huang, Arturo N. Medina, Dawn A. Smith, Laura Ann Sanders, John Dallas Pruitt
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Patent number: 8091568Abstract: The present invention provides a lens care kit for disinfecting and cleaning contact lenses. The lens care kit of the invention allows customers to visually identify when their lenses are disinfected, clean, and ready to wear. The invention is relied on color change, due to temporally photo-bleaching of a colored lens care solution, to indicate the readiness of disinfection and cleaning of contact lenses.Type: GrantFiled: August 14, 2007Date of Patent: January 10, 2012Assignee: Novartis AGInventors: Jennifer Dawn Lane, Dawn A. Smith
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Patent number: 8079703Abstract: The invention provides a silicone hydrogel contact lens including a hydrolyzable units. The hydrolyzable units can be converted by hydrolysis into a hydrophilic units which is capable of imparting the silicone hydrogel contact lens a hydrophilic surface without post-curing surface treatment. The invention also provides an actinically crosslinkable prepolymer including hydrolyzable units and use of the prepolymer of the invention. In addition, the invention provides a method for making wettable silicone hydrogel contact lens without posterior surface treatments other than hydrolysis.Type: GrantFiled: July 8, 2009Date of Patent: December 20, 2011Assignee: Novartis AGInventors: Frank Chang, Dawn A. Smith, Arturo N. Medina, Michael Hugh Quinn, L. Lawrence Chapoy
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Patent number: 8071658Abstract: The invention provide a new class of silicone-containing prepolymers containing dangling polysiloxane-containing polymer chains. This class of silicone-containing prepolymer is capable of being actinically crosslinked to form a silicone hydrogel material with a relatively high oxygen permeability, a reduced elastic modulus, and a relatively high ion permeability. The present invention is also related to silicone hydrogel contact lenses made from this class of silicone-containing prepolymers and to methods for making the silicone hydrogel contact lenses.Type: GrantFiled: March 21, 2008Date of Patent: December 6, 2011Assignee: Novartis AGInventors: Jian S. Zhou, Dawn A. Smith
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Patent number: 8067483Abstract: Indicator inks, indicators formed by printing or otherwise utilizing the inks and host products utilizing the indicators are disclosed. Reactivity-enhancing adjuvants stimulate enhanced thermal reactivity of diacetylenic or other indicator agents capable of responding to ambient thermal conditions with a visual change signaling an end point. The diacetylenic or other agents may be sensitive or relatively insensitive to ambient temperatures. Use of a reactivity-enhancing adjuvant provides a useful means for adapting the reactivities of indicator agents to the response characteristics of prospective host products, for example perishables such as vaccines or fresh fish and maturables such as fruit, cheese and wine. Some exemplary adjuvants include low-temperature polymerization initiators, for example methyl ethyl ketone peroxide and polymerization accelerators, for example cobalt compounds. Such initiators and accelerators can also be used in combination.Type: GrantFiled: June 29, 2006Date of Patent: November 29, 2011Assignee: Temptime CorporationInventors: Thaddeus Prusik, Dawn Smith, Ray H. Baughman
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Patent number: 7968050Abstract: The present invention provides an aqueous solution for sterilizing and storing ophthalmic devices, preferably a contact lens, made of a hydrogel material, preferably a poly(oxyalkylene)-containing hydrogel material. The solution comprises one or more organic buffer agents, such as a Good buffer or a bis-aminopolyols; an organic tonicity-adjusting agent with multiple hydroxyl groups in an amount sufficient to provide an osmolarity of from about 200 to about 450 mosm/l, wherein the aqueous solution has a pH of from about 5.5 to about 8.5, provided that the aqueous solution include phosphate buffer at a concentration of about 15 mM or less and about 5000 ppm sodium chloride. The present invention also provides a method for sterilizing and storing an ophthalmic device using an aqueous solution of the invention.Type: GrantFiled: August 20, 2008Date of Patent: June 28, 2011Assignee: Novartis AGInventors: Jürgen Vogt, Mary Flowers Mowrey-McKee, Dawn Smith
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Publication number: 20100258961Abstract: The invention provide a method for making silicone hydrogel based on the Lightstream Technology from a monomer mixture with a curing time of less than about 100 seconds. The present invention is also related to silicone hydrogel contact lenses made according to methods of the invention.Type: ApplicationFiled: June 16, 2009Publication date: October 14, 2010Inventors: Frank Chang, Jürgen Vogt, John Dallas Pruitt, Xinming Qian, Dawn A. Smith, Angelika Maria Domschke, Troy Vernon Holland, Richard Charles Turek, Daqing Wu
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Publication number: 20100014047Abstract: The invention provides a silicone hydrogel contact lens including a hydrolyzable units. The hydrolyzable units can be converted by hydrolysis into a hydrophilic units which is capable of imparting the silicone hydrogel contact lens a hydrophilic surface without post-curing surface treatment. The invention also provides an actinically crosslinkable prepolymer including hydrolyzable units and use of the prepolymer of the invention. In addition, the invention provides a method for making wettable silicone hydrogel contact lens without posterior surface treatments other than hydrolysis.Type: ApplicationFiled: July 8, 2009Publication date: January 21, 2010Inventors: Frank Chang, Dawn A. Smith, Arturo N. Medina, Michael Hugh Quinn, L. Lawrence Chapoy
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Publication number: 20090230575Abstract: The invention provide a method for cast-molding hydrogel contact lenses, especially silicone hydrogel contact lenses by using plastic molds of a poly(cycloalkylene-dialkylene terephthalate) copolymer. These plastic molds do not need to be degassed and stored in an oxygen-free atmosphere (e.g., N2 or Ar) before being used for cast-molding silicone hydrogel contact lenses in the absence of oxygen and resultant silicone hydrogel lenses can still have relatively high ion permeability and relatively low variation in targeted optical power, compared with silicone hydrogel lenses made from a conventional mold material, such as polypropylene. The invention also provides plastic molds for cast-molding silicone hydrogel contact lenses.Type: ApplicationFiled: March 10, 2009Publication date: September 17, 2009Inventors: Alice Weimin Liu, Lance Kyle Lipscomb, Michael Schaub, Dawn A. Smith
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Publication number: 20090199878Abstract: The present invention provides a lens care kit for disinfecting and cleaning contact lenses. The lens care kit of the invention allows customers to visually identify when their lenses are disinfected, clean, and ready to wear. The invention is relied on color change, due to temporally photo-bleaching of a colored lens care solution, to indicate the readiness of disinfection and cleaning of contact lenses.Type: ApplicationFiled: August 14, 2007Publication date: August 13, 2009Inventors: Jennifer Dawn Lane, Dawn A. Smith
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Patent number: 7490575Abstract: A combination temperature exposure indicator suitable for attachment to, or association with, a host product has a substrate, a freeze indicator supported by the substrate and a cumulative ambient time-temperature indicator also supported by the substrate. The freeze indicator can provide a visual indication of exposure of the freeze indicator to a freezing or near-freezing temperature and the cumulative time-temperature indicator can provide a visual indication of exposure of the cumulative time-temperature indicator to a predetermined cumulative time-temperature value. Also disclosed are: a combination freeze indicator and threshold temperature indicator; a combination threshold indicator and cumulative temperature indicator; and three-way combination indicators that can provide indications of cumulative past temperature exposure, exposure to freezing temperatures and exposure to a temperature above a threshold.Type: GrantFiled: November 8, 2006Date of Patent: February 17, 2009Assignee: Temptime CorporationInventors: Dene H. Taylor, Thaddeus Prusik, Dawn Smith
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Publication number: 20080317625Abstract: The present invention provides an aqueous solution for sterilizing and storing ophthalmic devices, preferably a contact lens, made of a hydrogel material, preferably a poly(oxyalkylene)-containing hydrogel material. The solution comprises one or more organic buffer agents, such as a Good buffer or a bis-aminopolyols; an organic tonicity-adjusting agent with multiple hydroxyl groups in an amount sufficient to provide an osmolarity of from about 200 to about 450 mosm/l, wherein the aqueous solution has a pH of from about 5.5 to about 8.5, provided that the aqueous solution include phosphate buffer at a concentration of about 15 mM or less and about 5000 ppm sodium chloride. The present invention also provides a method for sterilizing and storing an ophthalmic device using an aqueous solution of the invention.Type: ApplicationFiled: August 20, 2008Publication date: December 25, 2008Inventors: Jurgen Vogt, Mary Flowers Mowrey-McKee, Dawn Smith
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Publication number: 20080257251Abstract: A freeze indicator employs, as active indicator element, dispersion of solid particles in a liquid medium which can be water or aqueous and which coagulates to provide an irreversible appearance change when subject to freezing. The liquid dispersion can be contained in an indicator volume around which extends a vapor block layer. The vapor block layer can prevent loss of liquid vapor from the dispersion and consequent drying out and dysfunctionality of the freeze indicator. For containing an aqueous medium, bilayer and trilayer laminate materials can be used which have a low water vapor transmission rate. The active indicator element can be a dilute colloidal dispersion of a metal such as gold or silver or other inorganic pigment material in water or an aqueous medium. Some embodiments avoid use of dispersants and the like and employ an active indicator element consisting of inorganic pigment particles, water and optionally an ice nucleating agent.Type: ApplicationFiled: February 6, 2008Publication date: October 23, 2008Inventors: Dene H. Taylor, Thaddeus Prusik, Dawn Smith