Patents by Inventor Alphonse A. Toppeto

Alphonse A. Toppeto 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).

  • Apparatus for determining differential mode and common mode noise
    Patent number: 4263549
    Abstract: Apparatus for isolating common mode and differential mode radio frequency noise in electronic and digital equipment from each other and quantitatively determining or displaying each for conformity to standard and for correction. The apparatus is likewise capable of determining and displaying the total of the two modes of noise.
    Type: Grant
    Filed: October 12, 1979
    Date of Patent: April 21, 1981
    Assignee: Corcom, Inc.
    Inventor: Alphonse A. Toppeto