Patents by Inventor Tatar Doru

Tatar Doru 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).

  • Brick for heat exchangers
    Patent number: 5924477
    Abstract: A hexagonal refractory brick is constructed with tapered sides so it can be stacked 3-on-1 and 1-on-3, the bottom surface of the brick fitting between projections on the top surfaces of three others. A central vertical channel in the brick is complemented by other vertical channels formed by the assembly of a plurality of bricks, and horizontal channels which are relatively wide at the bottom.
    Type: Grant
    Filed: November 3, 1997
    Date of Patent: July 20, 1999
    Inventor: Tatar Doru