Patents by Inventor Rekha Rangarajan

Rekha Rangarajan 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).

  • Publication number: 20240099970
    Abstract: The present disclosure is directed, in part, to aqueous pharmaceutical solutions comprising benzyl atropine or a pharmaceutically acceptable salt or prodrug thereof, at least one buffer, at least one tonicity agent, and at least one solubilizing agent, processes of preparing an aqueous solution comprising benzyl atropine, the products of such processes, and methods of preventing myopia, treating myopia, reducing myopia progression, or preventing myopia progression in a subject in need thereof, by administering to the eye of the subject a therapeutically effective amount of such an aqueous pharmaceutical solution.
    Type: Application
    Filed: September 7, 2023
    Publication date: March 28, 2024
    Inventors: Howard Allen Ketelson, Rekha Rangarajan
  • Patent number: 11779537
    Abstract: Polymeric eye inserts are provided that may be dissolvable when placed in the cul-de-sac of the eye. These inserts may contain one or more mucoadhesive polymers, a biodegradable polymer as well as softener/plasticizer so that, when inserted into the eye, they may absorb tears, and dissolve and slowly release lubricant into the tear film to lubricate and protect the ocular surface for an extended duration of time. The biodegradable polymer containing eye insert may increase dissolution time on the ocular surface for longer lasting relief, may reduce dosing frequency and patient burden typically associated with topical drop usage. These polymeric eye inserts also may include one or more pharmaceutically active agents.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: October 10, 2023
    Assignee: Alcon Inc.
    Inventors: Howard Allen Ketelson, Rekha Rangarajan
  • Publication number: 20230285443
    Abstract: The present invention relates to artificial tear compositions and ophthalmic compositions suitable for drug delivery, In one embodiment of the present invention; the compositions comprise a galactomannan polymer such as guar or hydroxypropyl guar, hyaluronic acid, and a cis-diol such as sorbitol. In a preferred embodiment, the compositions also comprise a borate compound.
    Type: Application
    Filed: May 17, 2023
    Publication date: September 14, 2023
    Inventors: James W. Davis, Howard Allen Ketelson, Elaine E. Campbell, David L. Meadows, Rekha Rangarajan
  • Patent number: 11730699
    Abstract: The present invention is directed to a lipid-based ophthalmic emulsion. The emulsion has an increased amount of a mucoadhesive galactomannan polymer that promotes a long-lasting protection against desiccation and moisture retention.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: August 22, 2023
    Assignee: Alcon Inc.
    Inventors: Howard Allen Ketelson, James W. Davis, Rekha Rangarajan
  • Publication number: 20230201112
    Abstract: A dissolvable medical device for protecting a corneal surface and providing lubrication and hydration to the corneal surface during ophthalmic surgery comprising: a polymeric film has sufficient dimensions to substantially cover a cornea when applied to an eye, wherein the polymeric film comprising one or more mucoadhesive polymers. The polymeric film dissolves between 15 minutes to 120 minutes to release the mucoadhesive polymers after applying the polymeric film to the eye and the polymeric film provides more effective corneal surface protection relative to a saline treatment based on Mean Green Fluorescence Index test (demonstrates corneal damage) during a simulated surgery. In addition, a kit for use in ophthalmic surgical procedures comprises 1) the at least one dissolvable medical device and 2) at least one viscosurgical viscoelastic or at least one ophthalmoscopic surgical contact lens.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Inventors: Howard Allen Ketelson, Rekha Rangarajan, Patrick John Sadd
  • Publication number: 20230201030
    Abstract: A dissolvable medical device for placing on the outer exposed surface of the eye to deliver a drug to the eye comprising: a polymeric film has sufficient dimensions to substantially cover a cornea when applied to an eye, wherein the polymeric film comprising one or more mucoadhesive polymers. The polymeric film dissolves between 15 minutes to 120 minutes to release the mucoadhesive and the pharmaceutically active agents after applying the polymeric film to the eye. The dissolved polymeric film is not impeding visualization of ocular tissue while maintaining a protective film on outer surface of the eye.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Inventors: Howard Allen Ketelson, Rekha Rangarajan
  • Publication number: 20230201031
    Abstract: A dissolvable medical device for placing on the outer exposed surface of the eye to heal the corneal wound comprising of: a polymeric film has sufficient dimensions to substantially cover a cornea when applied to an eye, wherein the polymeric film comprising one or more mucoadhesive polymers, wherein the polymeric film dissolves between 15 minutes to 120 minutes to release the mucoadhesive polymers, wherein the dissolved polymeric film is not impeding visualization of ocular tissue while maintaining a protective film on outer surface of the eye.
    Type: Application
    Filed: December 22, 2022
    Publication date: June 29, 2023
    Inventors: Howard Allen Ketelson, Rekha Rangarajan
  • Patent number: 11672820
    Abstract: The present invention relates to artificial tear compositions and ophthalmic compositions suitable for drug delivery. In one embodiment of the present invention, the compositions comprise a galactomannan polymer such as guar or hydroxypropyl guar, hyaluronic acid, and a cis-diol such as sorbitol. In a preferred embodiment, the compositions also comprise a borate compound.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: June 13, 2023
    Assignee: Alcon Inc.
    Inventors: James W. Davis, Howard Allen Ketelson, Elaine E. Campbell, David L. Meadows, Rekha Rangarajan
  • Publication number: 20220323346
    Abstract: Polymeric eye inserts are provided that may be dissolvable when placed in the cul-de-sac of the eye. These inserts may contain one or more mucoadhesive polymers polymers, a biodegradable polymer as well as softener/plasticizer so that, when inserted into the eye, they may absorb tears, and dissolve and slowly release lubricant into the tear film to lubricate and protect the ocular surface for an extended duration of time. The biodegradable polymer containing eye insert may increase dissolution time on the ocular surface for longer lasting relief, may reduce dosing frequency and patient burden typically associated with topical drop usage. These polymeric eye inserts also may include one or more pharmaceutically active agents.
    Type: Application
    Filed: June 23, 2022
    Publication date: October 13, 2022
    Inventors: Howard Allen Ketelson, Rekha Rangarajan
  • Publication number: 20220273699
    Abstract: The present invention relates to artificial tear compositions and ophthalmic compositions suitable for drug delivery. In one embodiment of the present invention, the compositions comprise a galactomannan polymer such as guar or hydroxypropyl guar, hyaluronic acid, and a cis-diol such as sorbitol. In a preferred embodiment, the compositions also comprise a borate compound.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 1, 2022
    Inventors: James W. Davis, Howard Allen Ketelson, Elaine E. Campbell, David L. Meadows, Rekha Rangarajan
  • Patent number: 11395797
    Abstract: Polymeric eye inserts are provided that may be dissolvable when placed in the cul-de-sac of the eye. These inserts may contain one or more mucoadhesive polymers polymers, a biodegradable polymer as well as softener/plasticizer so that, when inserted into the eye, they may absorb tears, and dissolve and slowly release lubricant into the tear film to lubricate and protect the ocular surface for an extended duration of time. The biodegradable polymer containing eye insert may increase dissolution time on the ocular surface for longer lasting relief, may reduce dosing frequency and patient burden typically associated with topical drop usage. These polymeric eye inserts also may include one or more pharmaceutically active agents.
    Type: Grant
    Filed: December 8, 2020
    Date of Patent: July 26, 2022
    Assignee: Alcon Inc.
    Inventors: Howard Allen Ketelson, Rekha Rangarajan
  • Patent number: 11376275
    Abstract: The present invention relates to artificial tear compositions and ophthalmic compositions suitable for drug delivery. In one embodiment of the present invention, the compositions comprise a galactomannan polymer such as guar or hydroxypropyl guar, hyaluronic acid, and a cis-diol such as sorbitol. In a preferred embodiment, the to compositions also comprise a borate compound.
    Type: Grant
    Filed: October 1, 2020
    Date of Patent: July 5, 2022
    Assignee: Alcon Inc.
    Inventors: James W. Davis, Howard Allen Ketelson, Elaine E. Campbell, David L. Meadows, Rekha Rangarajan
  • Publication number: 20210169781
    Abstract: Polymeric eye inserts are provided that may be dissolvable when placed in the cul-de-sac of the eye. These inserts may contain one or more mucoadhesive polymers polymers, a biodegradable polymer as well as softener/plasticizer so that, when inserted into the eye, they may absorb tears, and dissolve and slowly release lubricant into the tear film to lubricate and protect the ocular surface for an extended duration of time. The biodegradable polymer containing eye insert may increase dissolution time on the ocular surface for longer lasting relief, may reduce dosing frequency and patient burden typically associated with topical drop usage. These polymeric eye inserts also may include one or more pharmaceutically active agents.
    Type: Application
    Filed: December 8, 2020
    Publication date: June 10, 2021
    Inventors: Howard Allen Ketelson, Rekha Rangarajan
  • Publication number: 20210128468
    Abstract: The present invention is directed to a lipid-based ophthalmic emulsion. The emulsion has an increased amount of a mucoadhesive galactomannan polymer that promotes a long-lasting protection against desiccation and moisture retention.
    Type: Application
    Filed: January 12, 2021
    Publication date: May 6, 2021
    Inventors: Howard Allen Ketelson, James W. Davis, Rekha Rangarajan
  • Publication number: 20210060056
    Abstract: The present invention relates to artificial tear compositions and ophthalmic compositions suitable for drug delivery. In one embodiment of the present invention, the compositions comprise a galactomannan polymer such as guar or hydroxypropyl guar, hyaluronic acid, and a cis-diol such as sorbitol. In a preferred embodiment, the to compositions also comprise a borate compound.
    Type: Application
    Filed: October 1, 2020
    Publication date: March 4, 2021
    Inventors: James W. Davis, Howard Allen Ketelson, Elaine E. Campbell, David L. Meadows, Rekha Rangarajan
  • Patent number: 10925892
    Abstract: The present invention is directed to a lipid-based ophthalmic emulsion. The emulsion has an increased amount of a mucoadhesive galactomannan polymer that promotes a long-lasting protection against desiccation and moisture retention.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: February 23, 2021
    Assignee: Alcon Inc.
    Inventors: Howard Allen Ketelson, James W. Davis, Rekha Rangarajan
  • Patent number: 10828320
    Abstract: The present invention relates to artificial tear compositions and ophthalmic compositions suitable for drug delivery. In one embodiment of the present invention, the compositions comprise a galactomannan polymer such as guar or hydroxypropyl guar, hyaluronic acid, and a cis-diol such as sorbitol. In a preferred embodiment, the compositions also comprise a borate compound.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: November 10, 2020
    Assignee: Alcon Inc.
    Inventors: James W. Davis, Howard Allen Ketelson, Elaine E. Campbell, David L. Meadows, Rekha Rangarajan
  • Publication number: 20200345544
    Abstract: Polymeric eye inserts are provided that may be dissolvable when placed in the cul-de-sac of the eye. These inserts may contain one or more polymers as well as a softener/plasticizer so that, when inserted into the eye, they may absorb tears, and dissolve and slowly release lubricant into the tear film to lubricate and protect the ocular surface for an extended duration of time. Increased retention time on the ocular surface for longer lasting relief may reduce dosing frequency and patient burden typically associated with topical drop usage. These polymeric eye inserts also may include one or more pharmaceutically active agents.
    Type: Application
    Filed: May 1, 2020
    Publication date: November 5, 2020
    Inventors: Howard Allen Ketelson, Rekha Rangarajan, Walter R. Laredo, Stephen John Collins
  • Publication number: 20200138853
    Abstract: The present invention relates to artificial tear compositions and ophthalmic compositions suitable for drug delivery. In one embodiment of the present invention, the compositions comprise a galactomannan polymer such as guar or hydroxypropyl guar, hyaluronic acid, and a cis-diol such as sorbitol. In a preferred embodiment, the compositions also comprise a borate compound.
    Type: Application
    Filed: December 19, 2019
    Publication date: May 7, 2020
    Inventors: James W. Davis, Howard Allen Ketelson, Elaine E. Campbell, David L. Meadows, Rekha Rangarajan
  • Publication number: 20190255096
    Abstract: The present invention is directed to a lipid-based ophthalmic emulsion. The emulsion has an increased amount of a mucoadhesive galactomannan polymer that promotes a long-lasting protection against desiccation and moisture retention.
    Type: Application
    Filed: February 21, 2019
    Publication date: August 22, 2019
    Inventors: Howard Allen Ketelson, James W. Davis, Rekha Rangarajan