Patents by Inventor Ahto Ollikainen

Ahto Ollikainen 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 horizontal structure
    Patent number: 6189274
    Abstract: A horizontal support structure for a building area divided into sub-areas. The structure comprises a primary support system of girders arranged spaced apart and parallel to each other. A secondary support system of joists is arranged essentially cross-wise on top of the primary support system. The joists are selectively supported on the girders such that joists under different sub-areas are supported by different girders.
    Type: Grant
    Filed: June 15, 1998
    Date of Patent: February 20, 2001
    Inventor: Ahto Ollikainen