Patents by Inventor Steven A. Teich

Steven A. Teich 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).

  • Retina chart
    Patent number: D370259
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: May 28, 1996
    Inventor: Steven A. Teich
  • Retina chart
    Patent number: D377528
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: January 21, 1997
    Inventor: Steven A. Teich