Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6790501 | Limited-play optical media with improved shelf-life and playability | Hendrik Theodorus van de Grampel, Jan-Pleun Lens, Daniel R. Olson, Joe Parker, Emil Markov Georgiev +1 more | 2004-09-14 |
| 6733950 | Limited play data storage media and method for limiting access to data thereon | Eric Breitung, Eelco van Hamersveld, Daniel R. Olson | 2004-05-11 |
| 6706847 | Copolycarbonate compositions, and related articles and processes | Gary Charles Davis, Rein Mollerus Faber, Jan-Pleun Lens, Kathryn Lynn Longley | 2004-03-16 |