As the United States continues its transition to the first-inventor-to-file (FITF) system, which became effective in March, 2013, it is worthwhile to recall that some situations give rise to exceptions that excuse strict application of first-to-file rules. Among these exceptions is the so-called first-to-publish exception which excuses an intervening publication by a third party which, although independent of the inventors' work, was published after a prior publication attributable to the inventors.