Patents by Inventor Sunil K. Bora

Sunil K. Bora 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).

  • Toy building block
    Patent number: 5853314
    Abstract: A toy building block in the form of a rectangular prism is interlockable with similar blocks located on any of its sides. The block also has mating female and male features which permit connection between two blocks in either of two mating relationships, the first relationship permitting swivelling movement between the blocks and the second relationship inhibiting swivelling movement.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: December 29, 1998
    Inventor: Sunil K. Bora