Patents by Inventor Sau-Hung Spence Leung

Sau-Hung Spence Leung 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: 7867509
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: January 11, 2011
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar, Neema Kulkarni, Albert F. Sorg
  • Publication number: 20090163530
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Application
    Filed: June 3, 2008
    Publication date: June 25, 2009
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar, Neema Kulkarni, Albert F. Sorg
  • Patent number: 7491406
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: February 17, 2009
    Assignee: McNeil-PPC, Inc.
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar, Neema Kulkarni, Albert F. Sorg
  • Patent number: 7407669
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: August 5, 2008
    Assignee: McNeil-PPC, Inc.
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar, Neema Kulkarni, Albert F. Sorg
  • Patent number: 7025983
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: April 11, 2006
    Assignee: Warner-Lambert Company LLC
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar, Neema Kulkarni, Albert F. Sorg
  • Patent number: 6923981
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: August 2, 2005
    Assignee: Warner-Lambert Company
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar, Neema Kulkarni, Albert F. Sorg
  • Publication number: 20050031675
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Application
    Filed: September 15, 2004
    Publication date: February 10, 2005
    Inventors: Sau-Hung Spence Leung, Robert Leone, Lori Kumar, Neema Kulkarni, Albert Sorg
  • Publication number: 20040136922
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Application
    Filed: October 14, 2003
    Publication date: July 15, 2004
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar, Neema Kulkarni, Albert F. Sorg
  • Publication number: 20030206941
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Application
    Filed: April 17, 2003
    Publication date: November 6, 2003
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar, Neema Kulkarni, Albert F. Sorg
  • Patent number: 6596298
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: July 22, 2003
    Assignee: Warner-Lambert Company
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar
  • Publication number: 20030054034
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Application
    Filed: September 14, 1999
    Publication date: March 20, 2003
    Inventors: SAU-HUNG SPENCE LEUNG, ROBERT S. LEONE, LORI D. KUMAR, NEEMA KULKARNI, ALBERT F. SORG
  • Publication number: 20030008008
    Abstract: Physiologically acceptable films, including edible films, are disclosed. The films include a water soluble film-forming polymer such as pullulan. Edible films are disclosed that include pullulan and antimicrobially effective amounts of the essential oils thymol, methyl salicylate, eucalyptol and menthol. The edible films are effective at killing the plaque-producing germs that cause dental plaque, gingivitis and bad breath. The film can also contain pharmaceutically active agents. Methods for producing the films are also disclosed.
    Type: Application
    Filed: February 21, 2002
    Publication date: January 9, 2003
    Inventors: Sau-Hung Spence Leung, Robert S. Leone, Lori D. Kumar, Neema Kulkarni, Albert F. Sorg
  • Publication number: 20020192293
    Abstract: A process for the dry granulation and manufacture of a pharmaceutical formulation comprises the steps of adding sodium phenytoin to a vessel of a mixer/granulator and adding at least one excipient to the vessel. Heat is then applied from the vessel to the sodium phenytoin and excipient to achieve the desired target temperature. Next, while the heat is applied from the vessel, the sodium phenytoin and excipient are mixed and chopped in the vessel to form a granulation suitable for encapsulating into a dosage form. Preferably, the excipients include magnesium stearate, sugar, lactose monohydrate, and talc. In an alternative embodiment, talc is added after chopping and blended into the formulation to form a blend suitable for encapsulating into a dosage form.
    Type: Application
    Filed: April 5, 2002
    Publication date: December 19, 2002
    Inventors: Srinivas R. Gadiraju, Qing Ha, Agber Ifan, Sau-Hung Spence Leung, Adam Sabouni