Patents by Inventor Larry Hsu

Larry Hsu 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: 8007827
    Abstract: The present invention relates generally to pharmaceutical dosage forms comprising: an absorption window active agent; a controlled release component comprising enteric-coated controlled release beads, wherein the enteric-coated release beads comprise at least two pH-sensitive polymer layers. The controlled-release dosage forms provide good bioavailability of absorption window active agents.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: August 30, 2011
    Assignee: Impax Laboratories, Inc.
    Inventors: Chien-Hsuan Han, Larry Hsu, Ann F. Hsu
  • Patent number: 7094427
    Abstract: The present invention relates to dosage forms of a combination of carbidopa and levodopa comprising both immediate release and controlled release components for the treatment of ailments associated with depleted amounts of dopamine in a patient's brain tissue.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: August 22, 2006
    Assignee: Impax Laboratories, Inc.
    Inventors: Chien-Hsuan Han, Larry Hsu, Ann F. Hsu
  • Publication number: 20060057197
    Abstract: The present invention relates generally to pharmaceutical dosage forms comprising: an absorption window active agent; a controlled release component comprising enteric-coated controlled release beads, wherein the enteric-coated release beads comprise at least two pH-sensitive polymer layers. The controlled-release dosage forms provide good bioavailability of absorption window active agents.
    Type: Application
    Filed: September 30, 2005
    Publication date: March 16, 2006
    Inventors: Chien-Hsuan Han, Larry Hsu, Ann Hsu
  • Publication number: 20060013875
    Abstract: The present invention relates to pharmaceutical dosage forms of a combination of carbidopa and levodopa comprising both immediate release and controlled release components for the treatment of ailments associated with depleted amounts of dopamine in a patient's brain tissue, which dosage forms display no food effect or at least substantially avoid the food effect, and a related method of treatment for a patient in which the bioavailability of levodopa under non-fasting conditions is equivalent to the bioavailability under fasting conditions.
    Type: Application
    Filed: August 2, 2005
    Publication date: January 19, 2006
    Inventors: Chien-Hsuan Han, Ann Hsu, Larry Hsu
  • Publication number: 20050226927
    Abstract: The present invention relates generally to pharmaceutical dosage forms having immediate release and controlled release properties that contain a ?-aminobutyric acid (GABAB) receptor agonist, e.g., baclofen, for the treatment of medical conditions, which includes spasms, cramping, and tightness of muscles, associated with ailments such as multiple sclerosis or certain spinal injuries.
    Type: Application
    Filed: May 26, 2005
    Publication date: October 13, 2005
    Inventors: Chien-Hsuan Han, Ann Hsu, Larry Hsu, Charles Hsiao, Ching-Ling Teng
  • Publication number: 20050220864
    Abstract: The present invention relates generally to pharmaceutical dosage forms having controlled release properties that contain a ?-aminobutyric acid (GABAB) receptor agonist, e.g., baclofen, for the treatment of medical conditions, which includes spasms, cramping, and tightness of muscles, associated with ailments such as multiple sclerosis or certain spinal injuries.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 6, 2005
    Inventors: Chien-Hsuan Han, Ann Hsu, Larry Hsu, Charles Hsiao, Ching-Ling Teng
  • Publication number: 20050220863
    Abstract: The present invention relates generally to pharmaceutical dosage forms having immediate release and controlled release properties that contain a ?-aminobutyric acid (GABAB) receptor agonist, e.g., baclofen, for the treatment of medical conditions, which includes spasms, cramping, and tightness of muscles, associated with ailments such as multiple sclerosis or certain spinal injuries.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 6, 2005
    Inventors: Chien-Hsuan Han, Ann Hsu, Larry Hsu, Charles Hsiao, Ching-Ling Teng
  • Publication number: 20050220873
    Abstract: The present invention relates generally to pharmaceutical dosage forms having immediate release and controlled release properties that contain a ?-aminobutyric acid (GABAB) receptor agonist, e.g., baclofen, for the treatment of medical conditions, which includes spasms, cramping, and tightness of muscles, associated with ailments such as multiple sclerosis or certain spinal injuries.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 6, 2005
    Inventors: Chien-Hsuan Han, Ann Hsu, Larry Hsu, Charles Hsiao, Ching-Ling Teng
  • Publication number: 20050220874
    Abstract: The present invention relates generally to pharmaceutical dosage forms having immediate release and controlled release properties that contain a ?-aminobutyric acid (GABAB) receptor agonist, e.g., baclofen, for the treatment of medical conditions, which includes spasms, cramping, and tightness of muscles, associated with ailments such as multiple sclerosis or certain spinal injuries.
    Type: Application
    Filed: April 2, 2004
    Publication date: October 6, 2005
    Inventors: Chien-Hsuan Han, Ann Hsu, Larry Hsu, Charles Hsiao, Ching-Ling Teng
  • Publication number: 20040166159
    Abstract: The present invention relates generally to pharmaceutical dosage forms having immediate and controlled release properties that contain an aromatic amino acid decarboxylase (AAAD) inhibitor (such as carbidopa), levodopa, and optionally a cathecol-O-methyltransferase (COMT) inhibitor, for the treatment of medical conditions associated with reduced dopamine levels in a patient's brain.
    Type: Application
    Filed: February 27, 2004
    Publication date: August 26, 2004
    Inventors: Chien-Hsuan Han, Ann Hsu, Larry Hsu
  • Publication number: 20030228360
    Abstract: The present invention relates to dosage forms of a combination of carbidopa and levodopa comprising both immediate release and controlled release components for the treatment of ailments associated with depleted amounts of dopamine in a patient's brain tissue.
    Type: Application
    Filed: September 12, 2002
    Publication date: December 11, 2003
    Inventors: Chien-Hsuan Han, Larry Hsu, Richard Ting, Charles Hsiao
  • Publication number: 20030224045
    Abstract: Dosage forms containing both immediate release and sustained release components for the treatment of ailments associated with depleted amounts of dopamine in brain tissue of a patient. The dosage forms contain a combination of carbidopa and levodopa.
    Type: Application
    Filed: May 29, 2002
    Publication date: December 4, 2003
    Inventors: Chien-Hsuan Han, Larry Hsu, Richard Ting, Charles Hsiao
  • Patent number: 6117625
    Abstract: A method of producing a composite image on an image recording medium from first and second component images, represented by digital image data, comprising the steps of converting the digital image data of each image into electromagnetic radiation image data; and forming the composite image by successively exposing the recording medium to the electromagnetic radiation image data of the first and second images so that the images are created on the medium in overlapping relationship to form a join region. The medium is doubly exposed, first by the image data of the first image and then by the image data of the second image. The intensity of the electromagnetic radiation representing the first image is progressively ramped off in the join region and the intensity of the electromagnetic radiation representing the second image is progressively ramped on in the join region.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: September 12, 2000
    Assignee: Cymbolic Sciences Inc.
    Inventors: Fred F. Cao, Larry Hsu, Daryl Gordon James, Kevin MacArthur, Wendy Macura, Derek G. Montgomery, John A. Nelson, Stephen A. Pavelick, Gary K. Pringle, Alastair M. Reed, Matthew P. Rektor, Horst W. Schaaf, Con Verburg