Patents by Inventor Tak L. Chang

Tak L. Chang 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).

  • Bone cement mixing and delivery system and methods of use thereof
    Patent number: 9427715
    Abstract: Bone cement mixing and delivery device and methods are disclosed. The device includes a first tube/barrel (e.g., a syringe barrel) containing a bone cement powder and a second tube/barrel that can be filled with or that contains a liquid; the first and second tubes/barrels can be fluidly connected end-to-end such that there is fluid communication between the tubes/barrels. Also disclosed are methods of preparing the device for use, methods for forming a bone cement using the device, and methods and device design to extend the shelf life of the device.
    Type: Grant
    Filed: August 28, 2008
    Date of Patent: August 30, 2016
    Assignee: ETEX Corporation
    Inventors: Robert Palazzolo, Manish Sutaria, Aliassghar N. Tofighi, Tak L. Chang, Aron D. Rosenberg
  • BONE CEMENT MIXING AND DELIVERY SYSTEM AND METHODS OF USE THEREOF
    Publication number: 20110112543
    Abstract: Bone cement mixing and delivery device and methods are disclosed. The device includes a first tube/barrel (e.g., a syringe barrel) containing a bone cement powder and a second tube/barrel that can be filled with or that contains a liquid; the first and second tubes/barrels can be fluidly connected end-to-end such that there is fluid communication between the tubes/barrels. Also disclosed are methods of preparing the device for use, methods for forming a bone cement using the device, and methods and device design to extend the shelf life of the device.
    Type: Application
    Filed: August 28, 2008
    Publication date: May 12, 2011
    Inventors: Robert Palazzolo, Manish Sutaria, Aliassghar N. Tofighi, Tak L. Chang, Aron D. Rosenberg