Patents by Inventor Alphons Steenstra

Alphons Steenstra 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).

  • Publication number: 20100025958
    Abstract: A foldable frame, a separating member, and a bicycle thereof are disclosed. The foldable frame is connected with a front wheel and a rear wheel of the bicycle. The foldable frame and the separating member can be used for folding the bicycle to align the axle centers of the front wheel and the rear wheel, which is useful for an user to carry the bicycle.
    Type: Application
    Filed: July 28, 2009
    Publication date: February 4, 2010
    Inventor: Alphons Steenstra