Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6877034 | Performance evaluation through benchmarking using an on-line questionnaire based system and method | David Machin | 2005-04-05 |
| 6038544 | System and method for determining the performance of a user responding to a call | David Machin | 2000-03-14 |