Patents by Inventor John G. Nagel

John G. Nagel 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).

  • Extension pull through device to allow for easier passage of flexible fiber endoscope
    Patent number: 4066071
    Abstract: A flexible endoscope having a fiber bundle for transmitting optical images from a distal end where an object to be viewed is located to a proximal end where an image of the object can be viewed by an operator. The endoscope incorporates a mechanism for advancing the endoscope toward the object to be viewed.
    Type: Grant
    Filed: August 15, 1975
    Date of Patent: January 3, 1978
    Inventor: John G. Nagel