Patents by Inventor Michael S. Longuet-Higgins

Michael S. Longuet-Higgins 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).

  • Building blocks
    Patent number: 5009625
    Abstract: A set of building blocks having two subsets of rhombohedral blocks (B,Y) having respectively dihedral angles of 72.degree. and 36.degree. so that the faces of both subsets of blocks are identical. Each of the faces incorporates magnets (11) whereby juxtaposed faces of any two blocks will stick together magnetically in a predetermined angular orientation.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: April 23, 1991
    Inventor: Michael S. Longuet-Higgins