Patents by Inventor Athanasios Polyzopoulos

Athanasios Polyzopoulos 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).

  • Mechanical coupling angle (profile) joint for metal concave beams
    Patent number: 6042298
    Abstract: An angular body secures mitered ends of frame members together. A screw in the body displaces rows of balls to engage respective teeth which can be cammed outwardly and engage in opening of the frame members to draw the frame members tightly against one another.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: March 28, 2000
    Inventors: Spyros Mastrogiannis, Athanasios Polyzopoulos