Patents by Inventor Tahseen Chowdhury

Tahseen Chowdhury 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: 20070254014
    Abstract: The present invention is directed to flexible, compressed intravaginal rings comprising a substantially homogeneous compressed mixture comprising a polymethacrylate, a plasticizer, and an active agent, and methods of making and using the same, and apparatus for making the same.
    Type: Application
    Filed: March 20, 2007
    Publication date: November 1, 2007
    Inventors: Salah Ahmed, Tahseen Chowdhury, Yi Luo
  • Publication number: 20070107200
    Abstract: A method for attaching a handle to a tablet to form a lollipop utilizes a specific work holder. The work holder has a tooling pallet with a plurality of openings going from a top surface to a bottom surface. A bullet and a spring are located in each opening and held in place by a plate that slides through a groove in the bottom surface of the tooling pallet to block the openings in the bottom surface. Each spring is positioned between a bullet and the plate. A tablet is placed in a cavity of each bullet and a handle is placed in contact with each tablet. High frequency mechanical vibrations, such as ultrasonic vibrations, are applied to a joint interface between each tablet and bullet until the joint interface reaches a molten state. The joint interfaces are then allowed to cool, thereby attaching a handle to each tablet and forming a lollipop.
    Type: Application
    Filed: November 3, 2006
    Publication date: May 17, 2007
    Inventors: Tahseen Chowdhury, Edward Gabrielski, Christopher Baker
  • Publication number: 20070087073
    Abstract: A tabletting press for making compressed products that includes an upper punch, a lower punch, a die and a core pin. The core pin is located in the lower punch and moves with respect to the lower punch. Movement of the upper punch and the lower punch toward each other within the die and the location of the core pin create a compressed product having a hole. The product may be a lollipop containing a pharmaceutical.
    Type: Application
    Filed: August 23, 2006
    Publication date: April 19, 2007
    Inventors: Tahseen Chowdhury, Sean Scully
  • Publication number: 20060280792
    Abstract: The present invention relates to a method of attaching a handle to a solid oral dosage form by use of high frequency mechanical vibrations. The present invention also relates to a method of attaching a handle to a solid oral dosage form, the method comprising: (a) placing a handle in contact with a solid oral dosage form, wherein an area of contact between the handle and the solid oral dosage form forms a joint interface; (b) applying high frequency mechanical vibrations to the joint interface until the solid oral dosage form at the joint interface reaches a molten state; and (c) cooling the joint interface in a molten state to allow solidification, thereby attaching the handle to the solid oral dosage form.
    Type: Application
    Filed: June 5, 2006
    Publication date: December 14, 2006
    Inventors: Tahseen Chowdhury, Edward Gabrielski, Christopher Baker
  • Publication number: 20060275364
    Abstract: The present invention provides flexible solid dosage forms that include an active agent, gelatin, and a polyol or saccharide. The present invention also provides methods of making flexible solid dosage forms.
    Type: Application
    Filed: May 25, 2006
    Publication date: December 7, 2006
    Inventors: Salah Ahmed, Lianli Li, Tahseen Chowdhury