Patents by Inventor Jeffrey J. Evans

Jeffrey J. Evans 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).

  • Method for stripping conformal coatings from circuit boards
    Patent number: 5501761
    Abstract: In preparation for removing a protective adherent covercoat from a circuit board that is to be repaired, the surface integrity of the coating is altered (for example, by making incisions therein). Subsequently, the coated circuit board is subjected to supercritical carbon dioxide in a processing chamber. Following this process, the coating is easily lifted from the board.
    Type: Grant
    Filed: October 18, 1994
    Date of Patent: March 26, 1996
    Assignee: AT&T Corp.
    Inventors: Jeffrey J. Evans, Leslie A. Guth, Urmi Ray