Patents by Inventor Joseph Rogalski

Joseph Rogalski 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).

  • Rowing sled
    Patent number: 5087060
    Abstract: A snow rowing sled is provided and consists of a frame affixed between and elevated above a pair of parallel spaced apart skis. Drive mechanisms will propel the sled forward by a person sitting on a seat on the frame by manually operating thrust levers which engage the snow.
    Type: Grant
    Filed: January 16, 1991
    Date of Patent: February 11, 1992
    Inventors: Joseph Rogalski, George Spector
  • Sit-up counter
    Patent number: D315111
    Type: Grant
    Filed: September 2, 1988
    Date of Patent: March 5, 1991
    Inventor: Joseph A. Rogalski