Patents by Inventor Rita KEYNAN

Rita KEYNAN 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: 9849142
    Abstract: Methods of treatment and dosage regimes using hydrophobic gel or foam compositions comprising a tetracycline antibiotic for accelerating the return of skin integrity and or in treating or alleviating a disorder including impetigo, acne, rosacea, a skin disease caused by a bacteria or a tetracycline antibiotic responsive disease, wherein the foam composition or gel is administered topically to a target area on a subject having the disorder and wherein the target area comprises an area of skin, or mucosa or an eye.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 26, 2017
    Assignee: Foamix Pharmaceuticals Ltd.
    Inventors: Dov Tamarkin, Elana Gazal, Rita Keynan, Meir Eini, David Schuz
  • Publication number: 20170340743
    Abstract: A topical therapeutic hydrophobic breakable composition includes a carrier comprising (a) about 60% to about 99% by weight of at least one hydrophobic oil; (b) at least one viscosity-modifying agents selected from the group consisting of a fatty alcohol, a fatty acid and a wax; and (c) a tetracycline antibiotic, characterized in that at least part of the tetracycline antibiotic is suspended in the composition; the viscosity of the composition is at least about 30% higher than the viscosity of the carrier without the tetracycline antibiotic; and is higher than the viscosity of the hydrophobic oil and the tetracycline antibiotic without the viscosity modifying agents. The tetracycline is chemically stable in the composition for at least six months; wherein more than about 90% of the tetracycline has not broken down. The composition is packaged as a breakable foam that breaks easily upon application of shear force.
    Type: Application
    Filed: May 10, 2017
    Publication date: November 30, 2017
    Inventors: Dov Tamarkin, Elana Gazal, Irakliy Papiashvili, Yohan Hazot, David Schuz, Rita Keynan
  • Publication number: 20170181970
    Abstract: A waterless foamable pharmaceutical composition suitable for external administration is disclosed. The composition includes a foamable carrier least one liquefied or compressed gas propellant. The foamable carrier includes at least one liquid oil; at least one silicone and at least one least one stabilizing agent; wherein the stabilizing agent selected from the group consisting of about 0.01% to about 25% by weight of at least one surface-active agent alone or on combination with a foam adjuvant; and about 0% to about 5% by weight of at least one polymeric agent alone or on combination with a foam adjuvant; and mixtures thereof. Pharmaceutical compositions comprising active agents, methods for their preparation, propellants suitable for use with the carriers and uses thereof are further described.
    Type: Application
    Filed: November 11, 2016
    Publication date: June 29, 2017
    Inventors: Dov Tamarkin, Helena Shifrin, Rita Keynan, Enbal Ziv, Tal Berman, David Schuz, Elana Gazal
  • Patent number: 9682021
    Abstract: The present invention relates to stable substantially non-aqueous, non-alcoholic, non-silicone, foamable carrier compositions comprising petrolatum or mixtures thereof, at least one foam agent, at least one propellant, and with and without the addition of an active agent. The formulations may contain a solvent substantially miscible therein. The present invention further provides a method of treating, alleviating or preventing a disorder of mammalian subject in need thereof, comprising administering the above-mentioned compositions to an afflicted target site of said mammalian subject.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: June 20, 2017
    Assignee: FOAMIX PHARMACEUTICALS LTD.
    Inventors: Dov Tamarkin, Doron Friedman, Enbal Ziv, Meir Eini, Tal Berman, Jorge Danziger, Rita Keynan, David Schuz
  • Patent number: 9675700
    Abstract: A topical therapeutic hydrophobic breakable composition includes a carrier comprising, (a) about 60% to about 99% by weight of at least one hydrophobic oil; (b) at least one viscosity-modifying agents selected from the group consisting of a fatty alcohol, a fatty acid and a wax; and (c) a tetracycline antibiotic, characterized in that at least part of the tetracycline antibiotic is suspended in the composition; the viscosity of the composition is at least about 30% higher than the viscosity of the carrier without the tetracycline antibiotic; and is higher than the viscosity of the hydrophobic oil and the tetracycline antibiotic without the viscosity modifying agents. The tetracycline is chemically stable in the composition for at least six months; wherein more than about 90% of the tetracycline has not broken down. The composition is packaged as a breakable foam that breaks easily upon application of shear force.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: June 13, 2017
    Assignee: FOAMIX PHARMACEUTICALS LTD.
    Inventors: Dov Tamarkin, Elana Gazal, Irakliy Papiashvili, Yohan Hazot, David Schuz, Rita Keynan
  • Publication number: 20170157175
    Abstract: The present invention relates to foamable compositions for treating acne comprising benzoyl peroxide; to a therapeutic kit comprising such compositions; and to a method of treating acne using such compositions.
    Type: Application
    Filed: September 12, 2016
    Publication date: June 8, 2017
    Inventors: Dov Tamarkin, Doron Friedman, David Schuz, Rita Keynan, Tal Berman, Jorge Danziger
  • Patent number: 9662298
    Abstract: Unique foamable vehicles or carriers comprising at least one wax, waxy substance, counterpart or derivative, a stabilizer, water, and a propellant are provided. In some embodiments, the wax is a liquid wax. In some embodiments, the wax includes a solid wax and a liquid wax. The compositions are substantially free of crystals. The components are selected to provide a composition that is substantially resistant to aging and to phase separation, and/or can substantially solubilize and or stabilize active ingredients. Pharmaceutical and cosmetic compositions with potentially enhanced skin delivery and their uses are also provided.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: May 30, 2017
    Assignee: FOAMIX PHARMACEUTICALS LTD.
    Inventors: Dov Tamarkin, Rita Keynan, David Schuz, Tal Berman
  • Patent number: 9549898
    Abstract: A waterless foamable pharmaceutical composition suitable for external administration is disclosed. The composition includes a foamable carrier least one liquefied or compressed gas propellant. The foamable carrier includes at least one liquid oil; at least one silicone and at least one least one stabilizing agent; wherein the stabilizing agent selected from the group consisting of about 0.01% to about 25% by weight of at least one surface-active agent alone or on combination with a foam adjuvant; and about 0% to about 5% by weight of at least one polymeric agent alone or on combination with a foam adjuvant; and mixtures thereof. Pharmaceutical compositions comprising active agents, methods for their preparation, propellants suitable for use with the carriers and uses thereof are further described.
    Type: Grant
    Filed: October 2, 2014
    Date of Patent: January 24, 2017
    Assignee: Foamix Pharmaceuticals Ltd.
    Inventors: Dov Tamarkin, Helena Shifrin, Rita Keynan, Enbal Ziv, Tal Berman, David Schuz, Elana Gazal
  • Publication number: 20170014517
    Abstract: The present invention related to the use of a pharmaceutical composition which is essentially free of pharmaceutically active agents for the treatment of human skin, especially in the treatment of acne, acne related symptoms, a tetracycline antibiotic responsive acne related disorder, skin disorder caused by a bacteria, and a tetracycline antibiotic responsive sebaceous gland disease, P. acne bacteria associated disorders, and other superficial infections, including skin infections.
    Type: Application
    Filed: September 18, 2015
    Publication date: January 19, 2017
    Inventors: Dov Tamarkin, Elana Gazal, Rita Keynan, Meir Eini, David Schuz
  • Patent number: 9439857
    Abstract: The present invention relates to foamable compositions for treating acne comprising benzoyl peroxide; to a therapeutic kit comprising such compositions; and to a method of treating acne using such compositions.
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: September 13, 2016
    Assignee: Foamix Pharmaceuticals Ltd.
    Inventors: Dov Tamarkin, Doron Friedman, David Schuz, Rita Keynan, Tal Berman, Jorge Danziger
  • Publication number: 20160101184
    Abstract: A substantially surface active agent tree composition which includes a hydrophobic solvent, and/or a petrolatm, a paraffin wax and/or a fatty alcohol, a fatty acid and/or a wax and/or shea butter, with and without a propellant. A substantially surface active agent free composition, further comprising, a tetracycline antibiotic, or a vitamin D derivative, or one or more other active agents. A method of treatment using a substantially surface active agent tree composition.
    Type: Application
    Filed: September 10, 2015
    Publication date: April 14, 2016
    Inventors: Dov Tamarkin, Elana Gazal, Irakliy Papiashvili, Yohan Hazot, David Schuz, Rita Keynan
  • Publication number: 20150196570
    Abstract: A substantially surface active agent free composition which includes a hydrophobic solvent, and/or a petrolatum, a paraffin wax and/or a fatty alcohol, a fatty acid and/or a wax and/or shea butter, with and without a propellant. A substantially surface active agent free composition, further comprising, a tetracycline antibiotic, or a vitamin D derivative, or one or more other active agents. A method of treatment using a substantially surface active agent free composition.
    Type: Application
    Filed: December 19, 2014
    Publication date: July 16, 2015
    Inventors: Dov Tamarkin, Elana Gazal, Irakliy Papiashvili, Yohan Hazot, David Schuz, Rita Keynan
  • Publication number: 20150190409
    Abstract: A topical therapeutic hydrophobic breakable composition includes a carrier comprising, (a) about 60% to about 99% by weight of at least one hydrophobic oil; (b) at least one viscosity-modifying agents selected from the group consisting of a fatty alcohol, a fatty acid and a wax; and (c) a tetracycline antibiotic, characterized in that at least part of the tetracycline antibiotic is suspended in the composition; the viscosity of the composition is at least about 30% higher than the viscosity of the carrier without the tetracycline antibiotic; and is higher than the viscosity of the hydrophobic oil and the tetracycline antibiotic without the viscosity modifying agents. The tetracycline is chemically stable in the composition for at least six months; wherein more than about 90% of the tetracycline has not broken down. The composition is packaged as a breakable foam that breaks easily upon application of shear force.
    Type: Application
    Filed: January 13, 2015
    Publication date: July 9, 2015
    Inventors: Dov Tamarkin, Elana Gazal, Irakliy Papiashvili, Yohan Hazot, David Schuz, Rita Keynan
  • Publication number: 20150164922
    Abstract: Methods of treatment and dosage regimes using hydrophobic gel or foam compositions comprising a tetracycline antibiotic for accelerating the return of skin integrity and or in treating or alleviating a disorder including a wound, burn, impetigo, acne, rosacea, a skin disease caused by a bacteria or a tetracycline antibiotic responsive disease, wherein the foam composition or gel is administered topically to a target area on a subject having the disorder and wherein the target area comprises an area of skin, or mucosa or an eye.
    Type: Application
    Filed: March 14, 2013
    Publication date: June 18, 2015
    Inventors: Dov Tamarkin, Elana Gazal, Rita Keynan, Meir Eini, David Schuz
  • Publication number: 20150118164
    Abstract: A waterless foamable pharmaceutical composition suitable for external administration is disclosed. The composition includes a foamable carrier least one liquefied or compressed gas propellant. The foamable carrier includes at least one liquid oil; at least one silicone and at least one least one stabilizing agent; wherein the stabilizing agent selected from the group consisting of about 0.01% to about 25% by weight of at least one surface-active agent alone or on combination with a foam adjuvant; and about 0% to about 5% by weight of at least one polymeric agent alone or on combination with a foam adjuvant; and mixtures thereof. Pharmaceutical compositions comprising active agents, methods for their preparation, propellants suitable for use with the carriers and uses thereof are further described.
    Type: Application
    Filed: October 2, 2014
    Publication date: April 30, 2015
    Inventors: Dov Tamarkin, Helena Shifrin, Rita Keynan, Enbal Ziv, Tal Berman, David Schuz, Elana Gazal
  • Patent number: 8992896
    Abstract: A topical therapeutic hydrophobic breakable composition includes a carrier comprising (a) about 60% to about 99% by weight of at least one hydrophobic oil; (b) at least one viscosity-modifying agents selected from the group consisting of a fatty alcohol, a fatty acid and a wax; and (c) a tetracycline antibiotic, characterized in that at least part of the tetracycline antibiotic is suspended in the composition; the viscosity of the composition is at least about 30% higher than the viscosity of the carrier without the tetracycline antibiotic; and is higher than the viscosity of the hydrophobic oil and the tetracycline antibiotic without the viscosity modifying agents. The tetracycline is chemically stable in the composition for at least six months; wherein more than about 90% of the tetracycline has not broken down. The composition is packaged as a breakable foam that breaks easily upon application of shear force.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: March 31, 2015
    Assignee: Foamix Pharmaceuticals Ltd.
    Inventors: Dov Tamarkin, Elana Gazal, Irakliy Papiashvili, Yohan Hazot, David Schuz, Rita Keynan
  • Publication number: 20150056149
    Abstract: A topical therapeutic hydrophobic breakable composition includes a carrier comprising (a) about 60% to about 99% by weight of at least one hydrophobic oil; (b) at least one viscosity-modifying agents selected from the group consisting of a fatty alcohol, a fatty acid and a wax; and (c) a tetracycline antibiotic, characterized in that at least part of the tetracycline antibiotic is suspended in the composition; the viscosity of the composition is at least about 30% higher than the viscosity of the carrier without the tetracycline antibiotic; and is higher than the viscosity of the hydrophobic oil and the tetracycline antibiotic without the viscosity modifying agents. The tetracycline is chemically stable in the composition for at least six months; wherein more than about 90% of the tetracycline has not broken down. The composition is packaged as a breakable foam that breaks easily upon application of shear force.
    Type: Application
    Filed: August 27, 2014
    Publication date: February 26, 2015
    Inventors: Dov Tamarkin, Elana Gazal, Irakliy Papiashvili, Yohan Hazot, David Schuz, Rita Keynan
  • Patent number: 8945516
    Abstract: A substantially surface active agent free composition which includes a hydrophobic solvent, and/or a petrolatum, a paraffin wax and/or a fatty alcohol, a fatty acid and/or a wax and/or shea butter, with and without a propellant. A substantially surface active agent free composition, further comprising, a tetracycline antibiotic, or a vitamin D derivative, or one or more other active agents. A method of treatment using a substantially surface active agent free composition.
    Type: Grant
    Filed: October 1, 2010
    Date of Patent: February 3, 2015
    Assignee: Foamix Pharmaceuticals Ltd.
    Inventors: Dov Tamarkin, Elana Gazal, Yohan Hazot, David Schuz, Rita Keynan, Nukri Papiashvili
  • Patent number: 8900553
    Abstract: A waterless foamable pharmaceutical composition suitable for external administration is disclosed. The composition includes a foamable carrier least one liquefied or compressed gas propellant. The foamable carrier includes at least one liquid oil; at least one silicone and at least one least one stabilizing agent; wherein the stabilizing agent selected from the group consisting of about 0.01% to about 25% by weight of at least one surface-active agent alone or on combination with a foam adjuvant; and about 0% to about 5% by weight of at least one polymeric agent alone or on combination with a foam adjuvant; and mixtures thereof. Pharmaceutical compositions comprising active agents, methods for their preparation, propellants suitable for use with the carriers and uses thereof are further described.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: December 2, 2014
    Assignee: Foamix Pharmaceuticals Ltd.
    Inventors: Dov Tamarkin, Helena Shifrin, Rita Keynan, Enbal Ziv, Tal Berman, David Schuz, Elana Gazal
  • Publication number: 20140328770
    Abstract: A topical therapeutic hydrophobic breakable composition includes a carrier comprising (a) about 60% to about 99% by weight of at least one hydrophobic oil; (b) at least one viscosity-modifying agents selected from the group consisting of a fatty alcohol, a fatty acid and a wax; and (c) a tetracycline antibiotic, characterized in that at least part of the tetracycline antibiotic is suspended in the composition; the viscosity of the composition is at least about 30% higher than the viscosity of the carrier without the tetracycline antibiotic; and is higher than the viscosity of the hydrophobic oil and the tetracycline antibiotic without the viscosity modifying agents. The tetracycline is chemically stable in the composition for at least six months; wherein more than about 90% of the tetracycline has not broken down. The composition is packaged as a breakable foam that breaks easily upon application of shear force.
    Type: Application
    Filed: July 9, 2014
    Publication date: November 6, 2014
    Inventors: Dov Tamarkin, Elana Gazal, Irakliy Papiashvili, Yohan Hazot, David Schuz, Rita Keynan