Patents by Inventor Man Taik Seul

Man Taik Seul 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).

  • Bicycle propulsion and speed change means
    Patent number: 4077648
    Abstract: The invention relates to a novel propulsion means and first and second speed change means for a bicycle. The propulsion means comprises lever means adapted to be pumped up and down by the operator for driving the rear wheel of a bicycle through the speed change means, a propulsion wheel, and sprocket means.
    Type: Grant
    Filed: October 18, 1976
    Date of Patent: March 7, 1978
    Inventor: Man Taik Seul