Patents by Inventor Carlo Favini

Carlo Favini 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).

  • Preparation of printed circuit boards by selective metallization
    Patent number: 4847114
    Abstract: The method for the manufacture of printed circuit boards which have been imaged by means of a polymeric resist which comprises selectively catalyzing those areas not covered by the image by treating the imaged circuit board with a catalyst having a charge higher than the charge on the non-imaged areas and sufficiently lower than the charge on the resist image to cause the catalyst to be repelled therefrom, but sufficiently close to the charge on the non-imaged areas to cause adsorption of the catalysts thereon.
    Type: Grant
    Filed: June 1, 1988
    Date of Patent: July 11, 1989
    Assignee: LeaRonal, Inc.
    Inventors: William R. Brasch, Carlo Favini
  • Process for printed circuit board manufacture
    Patent number: 4761304
    Abstract: The method for the manufacture of printed circuit boards which have been imaged by means of a polymeric resist which comprises selectively catalyzing those areas not covered by the image by treating the imaged circuit board with a catalyst having a charge higher than the charge on the non-imaged areas and sufficiently lower than the charge on the resist image to cause the catalyst to be repelled therefrom, but sufficiently close to the charge on the non-imaged areas to cause adsorption of the catalysts thereon.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: August 2, 1988
    Assignee: LeaRonal, Inc.
    Inventors: William R. Brasch, Carlo Favini
  • Process for printed circuit board manufacture
    Patent number: 4759952
    Abstract: The method for the manufacture of printed circuit boards which have been imaged by means of a polymeric resist which comprises selectively catalyzing those areas not covered by the image by treating the imaged circuit board with a catalyst having a charge higher than the charge on the non-imaged areas and sufficiently lower than the charge on the resist image to cause the catalyst to be repelled therefrom, but sufficiently close to the charge on the non-imaged areas to cause adsorption of the catalysts thereon.
    Type: Grant
    Filed: August 20, 1986
    Date of Patent: July 26, 1988
    Assignee: LeaRonal, Inc.
    Inventors: William R. Brasch, Carlo Favini