Patents by Inventor Katalin Prokai

Katalin Prokai 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: 7572781
    Abstract: The subject invention provides a mechanism by which steroidal quinol compounds confer beneficial ophthalmic effects. The subject compounds possess a lipophilic-hydrophilic balance for transcorneal penetration and are readily reduced into parent phenolic A-ring steroid compounds to provide protection or treatment against various ocular symptoms and disorders. The compounds according to the subject invention appear to be highly advantageous as prodrugs to provide protection and/or treatment against ocular disorders. These prodrugs confer lipid solubility optimal for transocorneal penetration and are readily converted to endogenous reducing agents into active phenolic A-ring steroid compounds. To the extent that these prodrugs have reduced feminizing effects and systemic toxicity, they would be expected to be quite advantageous for protecting or treating the eye against ocular disorders such as cataract or glaucoma without undesired (systemic) side effects).
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: August 11, 2009
    Assignees: University of Florida, University of North Texas Health Science Center
    Inventors: Laszlo Prokai, Katalin Prokai, James Simpkins, Neeraj Agarwal
  • Patent number: 7534779
    Abstract: The subject invention provides a mechanism by which steroidal quinol compounds confer beneficial ophthalmic effects. The subject compounds possess a lipophilic-hydrophilic balance for transcorneal penetration and are readily reduced into parent phenolic A-ring steroid compounds to provide protection or treatment against various ocular symptoms and disorders. The compounds according to the subject invention appear to be highly advantageous as prodrugs to provide protection and/or treatment against ocular disorders. These prodrugs confer lipid solubility optimal for transcorneal penetration and are readily converted to endogenous reducing agents into active phenolic A-ring steroid compounds. To the extent that these prodrugs have reduced feminizing effects and systemic toxicity, they would be expected to be quite advantageous for protecting or treating the eye against ocular disorders such as cataract or glaucoma without undesired (systemic) side effects).
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: May 19, 2009
    Assignees: University of Florida, University of North Texas Health Science Center
    Inventors: Laszlo Prokai, Katalin Prokai
  • Publication number: 20080119446
    Abstract: The subject invention provides a mechanism by which steroidal quinol compounds confer beneficial ophthalmic effects. The subject compounds possess a lipophilic-hydrophilic balance for transcorneal penetration and are readily reduced into parent phenolic A-ring steroid compounds to provide protection or treatment against various ocular symptoms and disorders. The compounds according to the subject invention appear to be highly advantageous as prodrugs to provide protection and/or treatment against ocular disorders. These prodrugs confer lipid solubility optimal for transcorneal penetration and are readily converted to endogenous reducing agents into active phenolic A-ring steroid compounds. To the extent that these prodrugs have reduced feminizing effects and systemic toxicity, they would be expected to be quite advantageous for protecting or treating the eye against ocular disorders such as cataract or glaucoma without undesired (systemic) side effects).
    Type: Application
    Filed: August 14, 2007
    Publication date: May 22, 2008
    Inventors: Laszlo Prokai, Katalin Prokai
  • Patent number: 7300926
    Abstract: The present invention relates to novel estrogen-related steroidal quinols and their use as drugs for estrogen replacement therapy. The quinols of the present invention provide improved physicochemical properties, increased bioavailability, and improved distribution into tissues, bone, in the cardiovascular system, and in the CNS (central nervous system) with only a slight estrogenic action or no estrogenic action in the uterus. The compounds are suitable for the production of pharmaceutical agents for use in numerous indications (for example, estrogen replacement therapy, prevention and treatment of osteoporosis).
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: November 27, 2007
    Assignees: University of Florida Research Foundation, Inc., University of North Texas Health Science Center at Fort Worth
    Inventors: Laszlo Prokai, Katalin Prokai, James Simpkins
  • Publication number: 20070213310
    Abstract: The subject invention provides a mechanism by which steroidal quinol compounds confer beneficial ophthalmic effects. The subject compounds possess a lipophilic-hydrophilic balance for transcorneal penetration and are readily reduced into parent phenolic A-ring steroid compounds to provide protection or treatment against various ocular symptoms and disorders. The compounds according to the subject invention appear to be highly advantageous as prodrugs to provide protection and/or treatment against ocular disorders. These prodrugs confer lipid solubility optimal for transocorneal penetration and are readily converted to endogenous reducing agents into active phenolic A-ring steroid compounds. To the extent that these prodrugs have reduced feminizing effects and systemic toxicity, they would be expected to be quite advantageous for protecting or treating the eye against ocular disorders such as cataract or glaucoma without undesired (systemic) side effects).
    Type: Application
    Filed: March 5, 2007
    Publication date: September 13, 2007
    Inventors: Laszlo Prokai, Katalin Prokai
  • Publication number: 20070155711
    Abstract: The subject invention provides a mechanism by which steroidal quinol compounds confer beneficial ophthalmic effects. The subject compounds possess a lipophilic-hydrophilic balance for transcomeal penetration and are readily reduced into parent phenolic A-ring steroid compounds to provide protection or treatment against various ocular symptoms and disorders. The compounds according to the subject invention appear to be highly advantageous as prodrugs to provide protection and/or treatment against ocular disorders. These prodrugs confer lipid solubility optimal for transocomeal penetration and are readily converted to endogenous reducing agents into active phenolic A-ring steroid compounds. To the extent that these prodrugs have reduced feminizing effects and systemic toxicity, they would be expected to be quite advantageous for protecting or treating the eye against ocular disorders such as cataract or glaucoma without undesired (systemic) side effects).
    Type: Application
    Filed: February 15, 2007
    Publication date: July 5, 2007
    Inventors: Laszlo Prokai, Katalin Prokai, James Simpkins, Neeraj Agarwal
  • Patent number: 7186707
    Abstract: The subject invention provides a mechanism by which steroidal quinol compounds confer beneficial ophthalmic effects. The subject compounds possess a lipophilic-hydrophilic balance for transcorneal penetration and are readily reduced into parent phenolic A-ring steroid compounds to provide protection or treatment against various ocular symptoms and disorders. The compounds according to the subject invention appear to be highly advantageous as prodrugs to provide protection and/or treatment against ocular disorders. These prodrugs confer lipid solubility optimal for transocorneal penetration and are readily converted to endogenous reducing agents into active phenolic A-ring steroid compounds. To the extent that these prodrugs have reduced feminizing effects and systemic toxicity, they would be expected to be quite advantageous for protecting or treating the eye against ocular disorders such as cataract or glaucoma without undesired (systemic) side effects).
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: March 6, 2007
    Assignees: University of Florida, University of North Texas Health Science Center
    Inventors: Laszlo Prokai, Katalin Prokai, James Simpkins, Neeraj Agarwal
  • Patent number: 7026306
    Abstract: The present invention relates to novel estrogen-related steroidal quinols and their use as prodrugs for phenolic estrogens and estrogen analogs. The quinols of the present invention provide improved physicochemical properties, increased bioavailability, and improved distribution into tissues and penetration across the blood-brain barrier when compared to phenolic estrogens and estrogen analogs.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: April 11, 2006
    Assignees: University of Florida Research Foundation, Inc., University of North Texas Health Science Center
    Inventors: Laszlo Prokai, Katalin Prokai, James Simpkins
  • Publication number: 20040171596
    Abstract: The subject invention provides a mechanism by which steroidal quinol compounds confer beneficial ophthalmic effects. The subject compounds possess a lipophilic-hydrophilic balance for transcorneal penetration and are readily reduced into parent phenolic A-ring steroid compounds to provide protection or treatment against various ocular symptoms and disorders. The compounds according to the subject invention appear to be highly advantageous as prodrugs to provide protection and/or treatment against ocular disorders. These prodrugs confer lipid solubility optimal for transocorneal penetration and are readily converted to endogenous reducing agents into active phenolic A-ring steroid compounds. To the extent that these prodrugs have reduced feminizing effects and systemic toxicity, they would be expected to be quite advantageous for protecting or treating the eye against ocular disorders such as cataract or glaucoma without undesired (systemic) side effects).
    Type: Application
    Filed: December 9, 2003
    Publication date: September 2, 2004
    Inventors: Laszlo Prokai, Katalin Prokai, James Simpkins, Neeraj Agarwal
  • Publication number: 20040138190
    Abstract: The present invention relates to novel estrogen-related steroidal quinols and their use as drugs for estrogen replacement therapy. The quinols of the present invention provide improved physicochemical properties, increased bioavailability, and improved distribution into tissues, bone, in the cardiovascular system, and in the CNS (central nervous system) with only a slight estrogenic action or no estrogenic action in the uterus. The compounds are suitable for the production of pharmaceutical agents for use in numerous indications (for example, estrogen replacement therapy, prevention and treatment of osteoporosis).
    Type: Application
    Filed: September 17, 2003
    Publication date: July 15, 2004
    Inventors: Laszlo Prokai, Katalin Prokai, James Simpkins
  • Publication number: 20030229060
    Abstract: The present invention relates to novel estrogen-related steroidal quinols and their use as prodrugs for phenolic estrogens and estrogen analogs. The quinols of the present invention provide improved physicochemical properties, increased bioavailability, and improved distribution into tissues and penetration across the blood-brain barrier when compared to phenolic estrogens and estrogen analogs.
    Type: Application
    Filed: April 1, 2003
    Publication date: December 11, 2003
    Inventors: Laszlo Prokai, Katalin Prokai, James Simpkins
  • Patent number: 5741802
    Abstract: The invention concerns novel anabaseine-related compounds that are useful in treating certain degenerative neural diseases such as Alzheimer's and Parkinson's which apparently involve decreased function of cerebral cortical nicotinic receptors. The compounds showed activity in both in vitro and in active and passive active avoidance studies in animal models. An exemplary active compound is a 3-substituted 2,4-dimethoxy-benzylidene anabaseine.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: April 21, 1998
    Assignee: University of Florida
    Inventors: William R. Kem, John A. Zoltewicz, Edwin M. Meyer, Katalin Prokai-Tatrai