Patents by Inventor David Stanisic

David Stanisic 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).

  • TENNIS TEACHING DEVICE
    Publication number: 20110294609
    Abstract: Training device to improve tennis skills. The training device includes an umbilical having a first end and a second end. The first end is attached to a wristband for encircling the wrist of a user and the second end is attached to a tennis racquet.
    Type: Application
    Filed: May 28, 2010
    Publication date: December 1, 2011
    Inventors: David Stanisic, Lisa L. Dorman
  • Tennis teaching device
    Patent number: 8052548
    Abstract: Training device to improve tennis skills. The training device includes an umbilical having a first end and a second end. The first end is attached to a wristband for encircling the wrist of a user and the second end is attached to a tennis racquet. The umbilical is under constant tension during use to encourage the movement of a user's hands in unison in carrying out the tennis stroke.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: November 8, 2011
    Inventors: David Stanisic, Lisa L. Dorman
  • Tennis teaching instructional aid
    Patent number: 7381140
    Abstract: A training device to improve tennis skills. The device includes wristbands for encircling each wrist of a user and a tension device with an umbilical attached to it and to the wristbands. The umbilical is under constant tension during use of the training device to encourage the movement of a user's hands in unison in carrying out a tennis stroke.
    Type: Grant
    Filed: December 6, 2006
    Date of Patent: June 3, 2008
    Inventor: David Stanisic