It seemed that there was at least one (we have never been told WHICH patent they have signed for)that the phototronics/electro-optics/camera companies continued to sign with even though the re-exams were still underway. If you all remember the list was long and included such companies as nokia and hoya. Recently there has been leica and optoma. Also in this grouping were companies that made X-ray/scanning equipment that use electo-optics--varian comes to mind right away. Anyway, the fact that they signed lead me to think that there was at least one claim in one of the patents that no one could argue. Barco makes those nice projectors and camera equipment---that is what lead me to my wild speculations. So much for my explanation and good luck to you all, ads