Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10235542 | Jewelry including etched or printed information and method to optically or wirelessly access digital replica of the etched or printed information | Sarah Ha, Carla J. Froehler, James J. Froehler | 2019-03-19 |
| 8717650 | Method and system for producing multiple images in a single image plane using diffraction | — | 2014-05-06 |
| 8264757 | Method and system for producing multiple images in a single image plane using diffraction | — | 2012-09-11 |
| 7961367 | Method and system for producing multiple images in a single image plane using diffraction | — | 2011-06-14 |
| 7830573 | Method and system for producing multiple images in a single image plane using diffraction | — | 2010-11-09 |
| 7120097 | System for making a photoresist master for a hybrid optical recording disc | Thomas C. Burgo | 2006-10-10 |
| 7057993 | Copy protection using multiple security levels on a programmable CD-ROM | James A. Barnard, Michael Inchalik | 2006-06-06 |
| 7028011 | Hybrid optical recording disc with copy protection | Steven A. Glaza, Cheryl M. Bianchi | 2006-04-11 |
| 6898172 | System to reduce writing overhead to a hybrid optical disc | Donald A. Fairman, William J. Mueller, Larry L. Smearer | 2005-05-24 |
| 6480462 | Hybrid optical disc construction | James A. Barnard, Thomas C. Burgo | 2002-11-12 |
| 6423478 | Method of forming a watermark image in a hybrid optical master disc | — | 2002-07-23 |
| 6212158 | Hybrid optical disc construction | James A. Barnard, Thomas C. Burgo | 2001-04-03 |