e Program or a work on which the Program is based.  The
    work thus licensed is called the contributor's &ldquo;contributor version&rdquo;.</p>

<p>A contributor's &ldquo;essential patent claims&rdquo; are all patent claims
    owned or controlled by the contributor, whether already acquired or
    hereafter acquired, that would be infringed by some manner, permitted
    by this License, of making, using, or selling its contributor version,
    but do not include claims that would be infringed only as a
 