Patents by Inventor Hock Seng Tan

Hock Seng Tan 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: 20220226268
    Abstract: The present invention provides compositions and methods for treating cognitive, social, or behavioral disabilities, and neurodevelopmental disorders such as autism spectrum disorder (ASD) and other central nervous system disorders such as fragile X syndrome (FXS), fragile X-associated tremor/ataxia syndrome (FXTAS), chronic fatigue syndrome (CFS), and post-traumatic stress syndrome (PTSD). The present invention provides compositions and methods for the intranasal delivery (IN) of a therapeutically effective amount of an antipurinergic agent such as suramin for treating the disorder in a patient thereof.
    Type: Application
    Filed: May 2, 2020
    Publication date: July 21, 2022
    Applicant: PaxMedica, Inc.
    Inventors: Hock Seng Tan, Michael Derby, Zachary Rome
  • Patent number: 9017718
    Abstract: Provided is a dual-release, dual-adhesiveness flexible thin film dosage form comprising: a quick-release subfilm comprising an admixture of polymer, which comprises predominantly highly water-soluble polymer(s), and a bioactive agent, the polymers and other components of the quick-release subfilm adapted to provide 20 minutes or less erodibility for the quick-release subfilm; and laminated against the quick-release subfilm, a sustained-release subfilm comprising an admixture of polymer, which comprises predominantly hydrophilic, bioadhesive polymer(s), and a second bioactive agent, which can be the same as the first, the polymers and other components of the sustained-release subfilm adapted to provide erodibility of 1 hour or more and 20 hours or less for the sustained-release subfilm, the dosage form having a thickness of 30 mil or less, and being more adhesive on the sustained-release side.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: April 28, 2015
    Assignee: Bionex Pharmaceuticals LLC
    Inventors: Hock Seng Tan, Siew Lian Chung
  • Publication number: 20110280925
    Abstract: Provided is a dual-release, dual-adhesiveness flexible thin film dosage form comprising: a quick-release subfilm comprising an admixture of polymer, which comprises predominantly highly water-soluble polymer(s), and a bioactive agent, the polymers and other components of the quick-release subfilm adapted to provide 20 minute or less erodibility for the quick-release subfilm; and laminated against the quick-release subfilm, a sustained-release subfilm comprising an admixture of polymer, which comprises predominantly hydrophilic, bioadhesive polymer(s), and a second bioactive agent, which can be the same as the first, the polymers and other components of the sustained-release subfilm adapted to provide erodibility of 1 hours or more and 20 hours or less for the sustained-release subfilm, the dosage form having a thickness of 30 mil or less, and being more adhesive on the sustained-release side.
    Type: Application
    Filed: April 22, 2010
    Publication date: November 17, 2011
    Applicant: BIONEX PHARMACEUTICALS LLC
    Inventors: Hock Seng Tan, Siew Lian Chung
  • Patent number: 6552024
    Abstract: Mucosal surface-coat-forming film dosage units containing a water-soluble hydrocolloid, an effective dose of an active agent and a mucosal adhesion enhancer; wherein the active agent is encapsulated within a polymer which is chemically or physically distinct from the hydocolloid; wherein the mucosal adhesion enhancer is a starch graft copolymer; wherein the film exhibits a dry tack value of less than 3.5 g, a wet tack of greater than 35 g, a gelation temperature that is greater than 70° C. for a 2% polymer solution, a dry film thickness of less than 20 mil, a water content of 0.5 to 10%, a tensile strength greater than 1500 psi, a modulus in the range of 35,000 to 300,000 psi, a % elongation of less than 20%, a tear probagation resistance of 0.001 to 1 N, and a dissolution time in the range of 1 to 600 seconds upon application to an oral mucosal surface.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: April 22, 2003
    Assignee: Lavipharm Laboratories Inc.
    Inventors: Li-Lan H. Chen, William R. Pfister, Donald W. Renn, Thitiwan Buranachokpaisan, James Osborne, Hock Seng Tan, Li Tao
  • Publication number: 20030068378
    Abstract: Mucosal surface-coat-forming film dosage units containing a water-soluble hydrocolloid, an effective dose of a sexual dysfunction active agent and a mucosal adhesion enhancer, wherein the mucosal adhesion enhancer is a starch graft copolymer.
    Type: Application
    Filed: March 5, 2002
    Publication date: April 10, 2003
    Applicant: Lavipharm Laboratories Inc.
    Inventors: Li-Lan H. Chen, William R. Pfister, Donald W. Renn, Thitiwan Buranachokpaisan, James Osborne, Hock Seng Tan, Li Tao