Patents by Inventor Tan V. Nguyen

Tan V. Nguyen 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: 4549589
    Abstract: A case for holding an interchangeable lens camera comprises at least three parts which can be interconnected in various ways to provide different camera and lens holding arrangements. A first part of the case is arranged to fit over the main body of a camera case and has a central opening through which a camera lens projects. The other two parts are cylinders, each open at one end, which fit over two camera lenses. Interengageable connectors such as zippers are provided around the opening of the first part, the open ends of the cylinders, and the closed end of one of the cylinders. Thus the case can be arranged to carry a camera and two lenses by securing one of the cylinders to the opening or the first part to hold the camera and one of the lenses, and securing the other cylinder to the closed end of the first cylinder to carry another lens. Alternatively the two cylinders can be secured together to form a closed cylinder to carry either a lens or the first part of the case when not in use.
    Type: Grant
    Filed: June 7, 1984
    Date of Patent: October 29, 1985
    Inventor: Tan V. Nguyen
  • Patent number: 4502781
    Abstract: A contact printer for printing on photographic paper includes a generally pyramid-shaped lower housing having an exposure window with a transparent cover held by a generally rectangular peripheral frame for holding the transparent cover and a print mask over the exposure window with a light positioned at the apex of the lower housing and an upper housing encompassing the apex of the lower housing forming a chamber in which is disposed batteries and light control circuitry with an exposure activating switch and a light indicator positioned on top of the upper housing.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: March 5, 1985
    Inventor: Tan V. Nguyen