Patents by Inventor Christope Walch

Christope Walch 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: 6374590
    Abstract: The invention concerns a link bracelet that can be assembled without any tools or special know-how. Said bracelet comprises external links with two parallel axles having a wedge-shaped cross section and central links with two parallel grooves for locating one of the axles of two adjacent external links. The groove has an oval cross section and an edge lying opposite to its opening and parallel to the axle. One of the two flat surfaces of the axle has a notch parallel to the axle. Said notch is flat in the direction of the outer side of the link and considerably slanted in the other direction where it forms a well-defined edge with the flat surface.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: April 23, 2002
    Inventor: Christope Walch