Patents by Inventor Eric C. Luo

Eric C. Luo 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: 6846837
    Abstract: Methods and topical pharmaceutical formulations are provided for the treatment of nail fungus (onychomycosis). The invention involves a pharmacologically active antifungal agent, plus a pharmaceutically acceptable base in a formulation having a pH of 7.5 to about 13.0, preferably about 8.0 to 11.5, and most preferably about 8.5 to 10.5. These basic formulations permeate the nail and are effective in treating fungal infections of the nail and surrounding tissues.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: January 25, 2005
    Inventors: Howard I. Maibach, Eric C. Luo, Tsung-Min Hsu
  • Patent number: 6835392
    Abstract: A permeation enhancer composition is provided for increasing the permeability of skin or mucosal tissue to topically or transdermally administered pharmacologically or cosmeceutically active agents. The composition is comprised of a hydroxide-releasing agent and a lipophilic co-enhancer such as a fatty alcohol, a fatty ether, or a fatty acid ester, including fatty acid esters of polyols such as propylene glycol and glycerol. Also provided are pharmaceutical formulations containing a therapeutically effective amount of an active agent in addition to the aforementioned enhancer composition, methods for administering active agents topically or transdermally with enhanced permeation, and drug delivery systems for application to an individual's skin or mucosal tissue, wherein the systems are formulated so as to contain an active agent to be administered and an effective permeation enhancing amount of an enhancer composition of the invention.
    Type: Grant
    Filed: March 13, 2003
    Date of Patent: December 28, 2004
    Assignee: Dermatrends, Inc.
    Inventors: Tsung-Min Hsu, Eric C. Jacobson, Rose C. LoBello, Eric C. Luo
  • Patent number: 6821523
    Abstract: Provided are methods and topical pharmaceutical formulations for use in the treatment of warts. The invention involves the topical administration of a pharmacologically active base in a formulation having a pH of about 7.5 to about 13.0, preferably about 8.0 to 11.5, and most preferably about 8.5 to 10.5. These basic formulations can be used to treat human papilloma virus infections, particularly cutaneous warts.
    Type: Grant
    Filed: June 21, 2002
    Date of Patent: November 23, 2004
    Assignee: Dermatrends, Inc.
    Inventors: Howard I. Maibach, Eric C. Luo, Tsung-Min Hsu
  • Publication number: 20040220262
    Abstract: Methods are provided for enhancing the permeability of skin or mucosal tissue to topical or transdermal application of pharmacologically or cosmeceutically active agents. The methods entail the use of a base in order to increase the flux of the active agent through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. The permeation enhancer can be an inorganic or organic base. Compositions and transdermal systems are also described.
    Type: Application
    Filed: June 3, 2004
    Publication date: November 4, 2004
    Inventors: Tsung-Min Hsu, Nicole T. Gricenko, Alan T. J. Hickey, Eric C. Jacobson, Rose C. LoBello, Jane Obara, Eric C. Luo
  • Publication number: 20040086556
    Abstract: Compositions and transdermal systems are provided for enhancing the permeability of skin or mucosal tissue to topical or transdermal application of local anesthetic agents. The compositions and systems include a base in order to increase the flux of the agent through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. The permeation enhancer can be an inorganic or organic base. Methods of use are also described.
    Type: Application
    Filed: September 29, 2003
    Publication date: May 6, 2004
    Inventors: Eric C. Luo, Nicole T. Gricenko, Tsung-Min Hsu
  • Patent number: 6719997
    Abstract: Methods, compositions and drug delivery systems are provided for the transdermal administration of a pharmacologically active amine. The active agent is administered with a hydroxide-releasing agent that serves as a permeation enhancer. Exemplary hydroxide-releasing agents are inorganic hydroxides, inorganic oxides, and alkali metal or alkaline earth metal salts of weak acids. Inorganic hydroxides include, for example, ammonium hydroxide, alkali metal hydroxides and alkaline earth metal hydroxides, such as sodium hydroxide, calcium hydroxide, potassium hydroxide, magnesium hydroxide, and the like.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: April 13, 2004
    Assignee: Dermatrends, Inc.
    Inventors: Tsung-Min Hsu, Russell Macy, Eric C. Luo
  • Publication number: 20040022837
    Abstract: A method is provided for increasing the permeability of skin or mucosal tissue to transdermally administered nonsteroidal anti-inflammatory drugs (NSAIDs). The method involves use of a specified amount of a hydroxide-releasing agent, the amount optimized to increase the flux of the NSAID through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. Formulations and drug delivery systems for co-administering a hydroxide-releasing agent with an NSAID are provided as well.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 5, 2004
    Inventors: Tsung-Min Hsu, Eric C. Luo
  • Patent number: 6673363
    Abstract: Methods are provided for enhancing the permeability of skin or mucosal tissue to topical or transdermal application of local anesthetic agents. The methods entail the use of a base in order to increase the flux of the agent through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. The permeation enhancer can be an inorganic or organic base. Compositions and transdermal systems are also described.
    Type: Grant
    Filed: June 19, 2002
    Date of Patent: January 6, 2004
    Assignee: Dermatrends, Inc.
    Inventors: Eric C. Luo, Nicole T. Gricenko, Tsung-Min Hsu
  • Publication number: 20030235542
    Abstract: Provided are methods and topical pharmaceutical formulations for skin lightening. The invention involves the topical administration of a pharmacologically active base in a formulation having a pH of about 7.5 to about 13.0, preferably about 8.0 to 11.5, and most preferably about 8.5 to 10.5. These basic formulations can be used to treat regions of hyperpigmented skin, comprising, as examples, age spots, freckles, disease-related hyperpigmented skin, melasma related to pregnancy or the use of oral contraceptives, and hyperpigmented skin due to chemical exposure or ingestion.
    Type: Application
    Filed: June 21, 2002
    Publication date: December 25, 2003
    Inventors: Howard I. Maibach, Eric C. Luo, Tsung-Min Hsu
  • Publication number: 20030235627
    Abstract: Provided are methods and topical pharmaceutical formulations for use in the treatment of warts. The invention involves the topical administration of a pharmacologically active base in a formulation having a pH of about 7.5 to about 13.0, preferably about 8.0 to 11.5, and most preferably about 8.5 to 10.5. These basic formulations can be used to treat human papilloma virus infections, particularly cutaneous warts.
    Type: Application
    Filed: June 21, 2002
    Publication date: December 25, 2003
    Inventors: Howard I. Maibach, Eric C. Luo, Tsung-Min Hsu
  • Publication number: 20030235543
    Abstract: Provided are methods and topical pharmaceutical formulations for skin lightening. The invention involves the topical administration of a pharmacologically active base in a formulation having a pH of about 8.0 to about 13.0, preferably about 8.0 to 11.5, more preferably about 8.5 to 11.5, and most preferably about 8.5 to 10.5. These basic formulations can be used to treat regions of hyperpigmented skin, comprising, as examples, age spots, freckles, disease-related hyperpigmented skin, melasma related to pregnancy or the use of oral contraceptives, and hyperpigmented skin due to chemical exposure or ingestion.
    Type: Application
    Filed: September 23, 2002
    Publication date: December 25, 2003
    Inventors: Howard I. Maibach, Eric C. Luo, Tsung-Min Hsu
  • Publication number: 20030235626
    Abstract: Provided are methods and topical pharmaceutical formulations for the treatment of inflammatory dermatoses. The invention involves the topical administration of a pharmacologically active base in a formulation having a pH of about 7.5 to about 13.0, preferably about 8.0 to 11.5, and most preferably about 8.5 to 10.5. These basic formulations are particularly suited to the treatment of acne vulgaris.
    Type: Application
    Filed: June 21, 2002
    Publication date: December 25, 2003
    Inventors: Howard I. Maibach, Eric C. Luo, Tsung-Min Hsu
  • Publication number: 20030235541
    Abstract: Methods and topical pharmaceutical formulations are provided for the treatment of nail fungus (onychomycosis). The invention involves a pharmacologically active antifungal agent, plus a pharmaceutically acceptable base in a formulation having a pH of 7.5 to about 13.0, preferably about 8.0 to 11.5, and most preferably about 8.5 to 10.5. These basic formulations permeate the nail and are effective in treating fungal infections of the nail and surrounding tissues.
    Type: Application
    Filed: June 21, 2002
    Publication date: December 25, 2003
    Inventors: Howard I. Maibach, Eric C. Luo, Tsung-Min Hsu
  • Publication number: 20030224035
    Abstract: A method is provided for increasing the permeability of skin or mucosal tissue to topically or transdermally administered pharmacologically or cosmeceutically active agents. The method involves use of a specified amount of a hydroxide-releasing agent, the amount optimized to increase the flux of the active agent through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. Topically applied formulations and drug delivery devices employing hydroxide-releasing agents as permeation enhancers are provided as well.
    Type: Application
    Filed: February 19, 2003
    Publication date: December 4, 2003
    Inventors: Eric C. Luo, Eric C. Jacobson, Tsung-Min Hsu
  • Patent number: 6645520
    Abstract: A method is provided for increasing the permeability of skin or mucosal tissue to transdermally administered nonsteroidal anti-inflammatory drugs (NSAIDs). The method involves use of a specified amount of a hydroxide-releasing agent, the amount optimized to increase the flux of the NSAID through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. Formulations and drug delivery systems for co-administering a hydroxide-releasing agent with an NSAID are provided as well.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: November 11, 2003
    Assignee: Dermatrends, Inc.
    Inventors: Tsung-Min Hsu, Eric C. Luo
  • Publication number: 20030161870
    Abstract: A permeation enhancer composition is provided for increasing the permeability of skin or mucosal tissue to topically or transdermally administered pharmacologically or cosmeceutically active agents. The composition is comprised of a hydroxide-releasing agent and a lipophilic co-enhancer such as a fatty alcohol, a fatty ether, or a fatty acid ester, including fatty acid esters of polyols such as propylene glycol and glycerol. Also provided are pharmaceutical formulations containing a therapeutically effective amount of an active agent in addition to the aforementioned enhancer composition, methods for administering active agents topically or transdermally with enhanced permeation, and drug delivery systems for application to an individual's skin or mucosal tissue, wherein the systems are formulated so as to contain an active agent to be administered and an effective permeation enhancing amount of an enhancer composition of the invention.
    Type: Application
    Filed: March 13, 2003
    Publication date: August 28, 2003
    Inventors: Tsung-Min Hsu, Eric C. Jacobson, Rose C. LoBello, Eric C. Luo
  • Publication number: 20030157157
    Abstract: A method is provided for increasing the permeability of skin or mucosal tissue to transdermally administered steroid drugs. The method involves use of a specified amount of a hydroxide-releasing agent, the amount optimized to increase the flux of the drug through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. Formulations and drug delivery systems for co-administering a hydroxide-releasing agent with a steroid drug are provided as well.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 21, 2003
    Inventors: Eric C. Luo, Tsung-Min Hsu
  • Publication number: 20030157156
    Abstract: A method is provided for increasing the permeability of skin or mucosal tissue to transdermally administered oxybutynin. The method involves use of a specified amount of a hydroxide-releasing agent, the amount optimized to increase the flux of the drug through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. Formulations, drug delivery systems and methods of treatment are provided as well.
    Type: Application
    Filed: February 20, 2003
    Publication date: August 21, 2003
    Inventors: Tsung-Min Hsu, Eric C. Luo
  • Publication number: 20030147943
    Abstract: A method is provided for increasing the permeability of skin or mucosal tissue to a topically or transdermally administered pharmacologically or cosmeceutically active peptide, polypeptide or protein. The method involves use of a specified amount of a hydroxide-releasing agent, the amount optimized to increase the flux of the peptide, polypeptide or protein through a body surface while minimizing the likelihood of skin damage, irritation or sensitization. Formulations and drug delivery devices employing hydroxide-releasing agents as permeation enhancers are provided as well.
    Type: Application
    Filed: January 22, 2003
    Publication date: August 7, 2003
    Inventors: Eric C. Luo, Tsung-Min Hsu
  • Patent number: 6602912
    Abstract: Methods and systems are provided for the transdermal administration of racemic phenylpropanolamine, i.e., a mixture of two or more of the four isomers of phenylpropanolamine, (+)-norephedrine, (−)-norephedrine, (+)-norpseudoephedrine, and (−)-norpseudoephedrine. Generally, the racemate will be a mixture of (+)-norephedrine and (−)-norephedrine. The racemic drug is administered along with a permeation enhancer. The permeation enhancer is preferably a basic compound, and optimally is a hydroxide-releasing agent such as sodium hydroxide.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: August 5, 2003
    Assignee: Dermatrends, Inc.
    Inventors: Tsung-Min Hsu, Russell Macy, Eric C. Luo