Patents by Inventor Der Yang Lee

Der Yang Lee 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: 20090196907
    Abstract: The present invention is directed to an edible film that contains two or more segmented portions and comprises an active ingredient that is distributed on a segmented portion or portions which comprise less than 50% of the cross sectional surface area of a major face of said film. The present invention also relates to methods of treatment for the treatment of various conditions and for taste-masking of pharmaceutical ingredients.
    Type: Application
    Filed: January 28, 2009
    Publication date: August 6, 2009
    Inventors: Frank J. Bunick, David W. Wynn, Der-Yang Lee
  • Publication number: 20090186082
    Abstract: In one embodiment, a dosage form comprises: (a) at least one active ingredient; (b) a molded core which is solid at room temperature; and (c) a shell which is in contact with at least a portion of the core, wherein the dosage form provides modified release of the active ingredient upon contacting of the dosage form with a liquid medium. In another embodiment of this invention, a dosage form comprises: (a) at least one active ingredient; (b) a molded core comprising a plurality of particles; and (c) a shell which is in contact with at least a portion of the core, wherein the dosage form provides modified release of the active ingredient upon contacting of the dosage form with a liquid medium.
    Type: Application
    Filed: January 27, 2009
    Publication date: July 23, 2009
    Inventors: Shun-Por LI, David Wynn, Narendra Parikh, Dan McTeigue, Harry S. Sowden, Martin Thomas, Der-Yang Lee
  • Publication number: 20090155372
    Abstract: In one embodiment a dosage form comprises at least one active ingredient and a molded matrix which comprises 10-100% of a material having a melting point of less than about 100 degrees C. selected from the stamp consisting of thermoplastic polyalkylene oxides, low melting hydrophobic materials, thermoplastic polymers, thermoplastic starches and combinations thereof, and the matrix is capable of providing modified release of the active ingredient upon contacting of the dosage form with a liquid medium. The dosage form may additionally comprise uncoated particles which may contain at least one active ingredient. In another embodiment, a dosage form comprises at least one active ingredient, a plurality of particles and a molded matrix, wherein at least a portion of the particles are coated.
    Type: Application
    Filed: February 24, 2009
    Publication date: June 18, 2009
    Inventors: SHUN-POR LI, Harry S. Sowden, David Wynn, Der-Yang Lee, Martin Thomas
  • Publication number: 20090048345
    Abstract: A method of administering non-steroidal-anti-inflammatory drugs, in particular propionic acid derivatives such as ibuprofen, is provided. The inventive dosage forms provide an initial release of the NSAID and a second sustained release of NSAID, preferably in a single dosing step.
    Type: Application
    Filed: August 15, 2007
    Publication date: February 19, 2009
    Inventors: Der-Yang Lee, Frank Bunick, James Schwing
  • Publication number: 20080206337
    Abstract: A dosage form comprises: (a) at least one active ingredient; (b) a core having an outer surface; and (c) a shell which resides upon at least a portion of the core outer surface, wherein at least a portion of the shell is semipermeable, such that the liquid medium diffuses through the semipermeable shell or shell portion to the core due to osmosis. The shell also provides for delivery of the active ingredient to a liquid medium outside the shell after contacting of the dosage form with the liquid medium. The dosage form delivers one or more active ingredients in a controlled manner upon contacting of the dosage form with a liquid medium. The dosage form may be employed to provide a burst release of the active ingredient, or to provide release of the active ingredient at an ascending release rate over an extended time period upon contacting of the dosage form with a liquid medium.
    Type: Application
    Filed: April 3, 2008
    Publication date: August 28, 2008
    Inventors: Hai Yong Huang, Der-Yang Lee, Shun Por Li
  • Publication number: 20080118571
    Abstract: A pharmaceutical dosage form comprising non-steroidal-anti-inflammatory drugs, in particular propionic acid derivatives such as ibuprofen, along with a second active ingredient having a shorter therapeutically effective plasma concentration duration, such as phenylephrine, and methods of administering the same are provided. This method provides improved therapeutic effect, in particular pain relief along with decongestant relief, over extended time periods.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 22, 2008
    Inventors: Der-Yang Lee, Jen-Chi Chen, Vincent Chen, Robert Shen
  • Publication number: 20080075766
    Abstract: The present invention is directed to a solid dosage form having at least two compressed portions and at least one light transmitting layer that is provided between said compressed portions. Each of said compressed portions having at least one surface area, a horizontal axis and a vertical axis. The light transmitting layer covers at least one surface of each compressed portions and is at least translucent along at least one axis of the compressed portions.
    Type: Application
    Filed: September 25, 2006
    Publication date: March 27, 2008
    Inventors: SHUN-POR LI, Hanspeter Naef, Frank Bunick, Der-Yang Lee
  • Patent number: 7048945
    Abstract: A pharmaceutical dosage form such as a capsule capable of delivering therapeutic agents into the body in a time-controlled or position-controlled pulsatile release fashion, is composed of a multitude of multicoated particulates (beads, pellets, granules, etc.) made of one or more populations of beads. Each of these beads except an immediate release bead has at least two coated membrane barriers. One of the membrane barriers is composed of an enteric polymer while the second membrane barrier is composed of a mixture of water insoluble polymer and an enteric polymer. The composition and the thickness of the polymeric membrane barriers determine the lag time and duration of drug release from each of the bead populations. Optionally, an organic acid containing intermediate membrane may be applied for further modifying the lag time and/or the duration of drug release.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: May 23, 2006
    Assignee: Eurand Pharamaceuticals, Ltd.
    Inventors: Phillip J. Percel, Krishna S. Vishnupad, Gopi M. Venkatesh, Der Yang Lee
  • Publication number: 20050266084
    Abstract: In one embodiment a dosage form comprises at least one active ingredient and a molded matrix which comprises 10-100% of a material having a melting point of less than about 100 degrees C. selected from the stamp consisting of thermoplastic polyalkylene oxides, low melting hydrophobic materials, thermoplastic polymers, thermoplastic starches and combinations thereof, and the matrix is capable of providing modified release of the active ingredient upon contacting of the dosage form with a liquid medium. The dosage form may additionally comprise uncoated particles which may contain at least one active ingredient. In another embodiment, a dosage form comprises at least one active ingredient, a plurality of particles and a molded matrix, wherein at least a portion of the particles are coated.
    Type: Application
    Filed: September 28, 2002
    Publication date: December 1, 2005
    Inventors: Shun-Por Li, Harry Sowden, David Wynn, Der-Yang Lee
  • Publication number: 20050196446
    Abstract: A dosage form comprises: (a) at least one active ingredient; (b) a core having an outer surface; and (c) a shell which resides upon at least a portion of the core outer surface, wherein at least a portion of the shell is semipermeable, such that the liquid medium diffuses through the semipermeable shell or shell portion to the core due to osmosis. The shell also provides for delivery of the active ingredient to a liquid medium outside the shell after contacting of the dosage form with the liquid medium. The dosage form delivers one or more active ingredients in a controlled manner upon contacting of the dosage form with a liquid medium. The dosage form may be employed to provide a burst release of the active ingredient, or to provide release of the active ingredient at an ascending release rate over an extended time period upon contacting of the dosage form with a liquid medium.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 8, 2005
    Inventors: Hai Huang, Der-Yang Lee, Shun Li
  • Publication number: 20050196447
    Abstract: A dosage form comprises: (a) at least one active ingredient; (b) a core having an outer surface; and (c) a shell which resides upon at least a portion of the core outer surface, wherein at least a portion of the shell is semipermeable, such that the liquid medium diffuses through the semipermeable shell or shell portion to the core due to osmosis. The shell also provides for delivery of the active ingredient to a liquid medium outside the shell after contacting of the dosage form with the liquid medium. The dosage form delivers one or more active ingredients in a controlled manner upon contacting of the dosage form with a liquid medium. The dosage form may be employed to provide a burst release of the active ingredient, or to provide release of the active ingredient at an ascending release rate over an extended time period upon contacting of the dosage form with a liquid medium.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 8, 2005
    Inventors: Hai Huang, Der-Yang Lee, Shun Li
  • Publication number: 20050196448
    Abstract: A dosage form comprises: (a) at least one active ingredient; (b) a core having an outer surface; and (c) a shell which resides upon at least a portion of the core outer surface, wherein at least a portion of the shell is semipermeable, such that the liquid medium diffuses through the semipermeable shell or shell portion to the core due to osmosis. The shell also provides for delivery of the active ingredient to a liquid medium outside the shell after contacting of the dosage form with the liquid medium. The dosage form delivers one or more active ingredients in a controlled manner upon contacting of the dosage form with a liquid medium. The dosage form may be employed to provide a burst release of the active ingredient, or to provide release of the active ingredient at an ascending release rate over an extended time period upon contacting of the dosage form with a liquid medium.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 8, 2005
    Inventors: Hai Yong Huang, Der-Yang Lee, Shun Li
  • Publication number: 20050196442
    Abstract: A dosage form comprises: (a) at least one active ingredient; (b) a core having an outer surface; and (c) a shell which resides upon at least a portion of the core outer surface, wherein at least a portion of the shell is semipermeable, such that the liquid medium diffuses through the semipermeable shell or shell portion to the core due to osmosis. The shell also provides for delivery of the active ingredient to a liquid medium outside the shell after contacting of the dosage form with the liquid medium. The dosage form delivers one or more active ingredients in a controlled manner upon contacting of the dosage form with a liquid medium. The dosage form may be employed to provide a burst release of the active ingredient, or to provide release of the active ingredient at an ascending release rate over an extended time period upon contacting of the dosage form with a liquid medium.
    Type: Application
    Filed: March 5, 2004
    Publication date: September 8, 2005
    Inventors: Hai Huang, Der-Yang Lee, Shun Li
  • Publication number: 20050019407
    Abstract: A composite dosage form comprises at least one active ingredient, a first portion comprising a first molded material, and a second portion comprising a second material which is compositionally different from the first material. The first and second portions are joined at an interface, and a surface of the first portion at the interface resides substantially conformally upon a surface of the second portion of the interface. Either the first portion, the second portion, or a combination thereof may contain at least one active ingredient. The first portion, second portion or both may also each comprise an insert which may contain at least one active ingredient. The dosage form may also comprise a third portion which is located between the first and second portions.
    Type: Application
    Filed: September 28, 2002
    Publication date: January 27, 2005
    Inventors: Harry Sowden, Frank Bunick, Gerard McNally, Der-Yang Lee, Martin Thomas
  • Publication number: 20050019376
    Abstract: A dosage form comprises an active ingredient and a confectionery composition. In one embodiment the relative standard deviation of the weight of the dosage form is less than 1%, and the dosage form has at least one face. In another embodiment, a dosage form comprising an active ingredient and a confectionery composition wherein the dosage form has at least one face, does not have a free formed surface, and has a mean polarized light transmission at the angle of maximum extinction which is not greater than the mean polarized light transmission of the dosage form at the angle of maximum transmission. The active ingredient may be a pharmaceutically active agent.
    Type: Application
    Filed: September 28, 2002
    Publication date: January 27, 2005
    Inventors: Gerard McNally, Frank Bunick, Harry Sowden, Gus LaBella, Timothy Gilmor, Der-Yang Lee, Martin Thomas
  • Publication number: 20040241236
    Abstract: A dosage form comprises: (a) a core comprising at least one active ingredient; and (b) a molded shell which surrounds the core, wherein the shell provides a predetermined time delay of greater than one hour for the onset of dissolution of the active ingredient upon contacting of the dosage form with a liquid medium and the delay is independent of the pH of the liquid medium. The weight of the shell may be at least 50 percent of the weight of the core, and the shell may have a thickness of about 500-4000 microns, or be substantially free of pores having a diameter of 0.5 to 5 microns.
    Type: Application
    Filed: May 28, 2004
    Publication date: December 2, 2004
    Inventors: Shun-Por Li, Harry S Sowden, David Wynn, Narendra Parikh, Der-Yang Lee, Martin Thomas
  • Publication number: 20040213849
    Abstract: A dosage form comprises: (a) at least one active ingredient: (b) a core having a first surface portion upon which resides a first coating and a second surface portion which is substantially free of the first coating; and (c) a shell which resides upon at least a portion of the second surface portion, wherein the shell comprises a different material from the first coating. In another embodiment, the dosage form comprises: (a) at least one active ingredient; (b)a core comprising a center portion having an exterior surface and an annular portion having an exterior surface and an interior surface, wherein the annular portion interior surface is in contact with at least a portion of the center portion exterior surface, and a coating resides on at least a portion of the annular portion exterior surface; and (c) a shell which resides upon at least a portion of the exterior surface of the center portion, wherein the shell comprises a different material than the impermeable coating.
    Type: Application
    Filed: May 27, 2004
    Publication date: October 28, 2004
    Inventors: Harry S. Sowden, David Wynn, Shun-Por Li, Der-Yang Lee, Martin Thomas
  • Publication number: 20040213848
    Abstract: In one embodiment, a dosage form comprises: (a) at least one active ingredient; (b) a molded core which is solid at room temperature; and (c) a shell which is in contact with at least a portion of the core, wherein the dosage form provides modified release of the active ingredient upon contacting of the dosage form with a liquid medium. In another embodiment of this invention, a dosage form comprises: (a) at least one active ingredient; (b) a molded core comprising a plurality of particles; and (c) a shell which is in contact with at least a portion of the core, wherein the dosage form provides modified release of the active ingredient upon contacting of the dosage form with a liquid medium.
    Type: Application
    Filed: May 17, 2004
    Publication date: October 28, 2004
    Inventors: Shun-Por Li, David Wynn, Narendra Parikh, Dan McTeigue, Harry S. Sowden, Martin Thomas, Der-Yang Lee
  • Publication number: 20040156902
    Abstract: A dosage form comprises at least one active ingredient, a first portion which comprises an exterior surface and one or more cavities defining at least one interior surface having indentations and an exterior surface, and a second molded portion which is inlaid into the cavities of the first portion and has an exterior surface. The first and second portions are in contact at an interface, the second portion comprises a solidified thermoplastic material, and the second portion resides substantially conformally upon the indentations of the first portion. In another embodiment, a dosage form comprises at least one active ingredient, a core having an outer surface and a shell residing on at least a portion of the core outer surface, wherein the shell comprises a first shell portion and a second molded shell portion which is inlaid into the first shell portion.
    Type: Application
    Filed: April 1, 2004
    Publication date: August 12, 2004
    Inventors: Der-Yang Lee, Harry S. Sowden, Martin Thomas
  • Publication number: 20040146559
    Abstract: A dosage form comprises an active ingredient, a core having an outer surface and a first shape and a shell having outer and inner surfaces and a second shape, in which the shell surrounds at least a portion of the core, and the first and second shapes are substantially different. In one embodiment the shell comprises at least about 80% of a flowable material selected from the group consisting of film formers, gelling polymers, thermoplastic materials, low melting hydrophobic materials, non-crystallizable sugars, non-crystallizable sugar-alcohols, and mixtures thereof. In another embodiment the shell is substantially free of pores having a diameter of 0.5 to 5.0 microns. In another embodiment, the core and shell each having a different number of planes of symmetry with respect to the same reference axis.
    Type: Application
    Filed: December 4, 2003
    Publication date: July 29, 2004
    Inventors: Harry S. Sowden, Frank J. Bunick, Gerard P. McNally, Der-Yang Lee, Martin Thomas