              sale, or importing the Program or any portion of it.</p>

                        <h5 id="section11">11. Patents.</h5>

                        <p>A “contributor” is a copyright holder who authorizes use under this
                            License of the Program or a work on which the Program is based. The
                            work thus licensed is called the contributor's “contributor version”.</p>

                        <p>A contributor's “essential patent claim