Patents by Inventor N. Chung Sizto

N. Chung Sizto 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).

  • Device and method for completing a fluidic circuit
    Patent number: 5622870
    Abstract: Disclosed are assay apparatus, devices and methods that permit longitudinal capillary flow of liquid between two pieces of bibulous material which, prior to actuation, are in a non-capillary flow relationship to each other. In particular, the devices utilize a distortable member which when distorted, actuates the device by creating a capillary flow relationship between the two pieces of bibulous material. In an alternative embodiment the apparatus, devices, and methods include at least one additional piece of bibulous material.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: April 22, 1997
    Assignee: Behringwerke AG
    Inventors: N. Chung Sizto, Nurith Kurn, Rajesh D. Patel, Martin Becker, Edwin F. Ullman
  • Device and method for completing a fluidic circuit
    Patent number: 5620657
    Abstract: Disclosed are assay apparatus, devices and methods that permit longitudinal capillary flow of liquid between two pieces of bibulous material which, prior to actuation, are in a non-capillary flow relationship to each other. In particular, the devices utilize a distortable member which when distorted, actuates the device by creating a capillary flow relationship between the two pieces of bibulous material. In an alternative embodiment the apparatus, devices, and methods include at least one additional piece of bibulous material.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: April 15, 1997
    Assignee: Behringwerke AG
    Inventors: N. Chung Sizto, Nurith Kurn, Rajesh D. Patel, Martin Becker, Edwin F. Ullman
  • Calibration device for heterogeneous immunoassay
    Patent number: 4791056
    Abstract: A device is disclosed for use in a simultaneous calibration assay method wherein a conjugate of a catalyst and a member of a specific binding pair ("mip") is employed. The present device comprises a surface to which a receptor is non-diffusively bound. The receptor is capable of specific binding to the conjugate of the catalyst and mip and is substantially incapable of binding to the catalyst or the mip apart from the conjugate. The surface may be an integral part of, or separate from, a support.
    Type: Grant
    Filed: March 27, 1984
    Date of Patent: December 13, 1988
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: N. Chung Sizto, Cynthia G. Roux
  • Ultrasonic enhanced immuno-reactions
    Patent number: 4575485
    Abstract: Rates of binding between members of a specific binding pair, e.g., ligand-receptor, are greatly enhanced by short-term ultrasonication of an aqueous medium containing the specific binding pair. The enhanced rates find particular use in specific binding protein assays.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: March 11, 1986
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: N. Chung Sizto, Cindy Gallup