Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8925102 | System and method of generating encryption/decryption keys and encrypting/decrypting a derivative work | David McDonald, David Robert Cuddy | 2014-12-30 |
| 8782803 | System and method of encrypting a derivative work using a cipher created from its source | David McDonald | 2014-07-15 |
| 7814068 | Identifying changed records in a file stored on an electronic token | Philip Painter, David Charles McDonald | 2010-10-12 |
| 5920317 | System and method for storing and displaying ultrasound images | — | 1999-07-06 |