Patents by Inventor Rudolpho Illis

Rudolpho Illis 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).

  • Baseball training device
    Patent number: 6666781
    Abstract: A mobile practice device for practicing the swinging motion of a baseball bat includes a holding apparatus (14) and strike zone restriction apparatus (16), the strike zone restriction apparatus (16) being supported by and maintained at a distance from and underlying ground surface by the holding apparatus (14). The strike zone restriction apparatus (16) includes a vertical side wall that restricts the swing of the baseball bat (12) by a practicing batter (18).
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: December 23, 2003
    Inventor: Rudolpho Illis