Patents by Inventor Miko?aj Le?niewicz

Miko?aj Le?niewicz 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).

  • Patent number: 8137218
    Abstract: A device for practicing tennis strokes that enables a user to develop a correct reflex action and a proper stance while playing tennis, including at least: a supporting structure (1) having a base (1a); an arm (3) having a work trajectory; a torsion member (2) including a subunit (12) for adjusting a force acting on the arm (3) and dynamics of movement of the arm (3); a subunit (6) for adjusting the height of the arm; a subunit (8) for setting a deflection of the work trajectory of the arm; a subunit (9) for adjusting the angle of inclination of the torsion member to the vertical axis (B); and a clamping member (4) for non-invasively clamping a tennis ball (5).
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: March 20, 2012
    Inventor: Mikołaj Leśniewicz