Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6647407 | Blackboard-centric layered software architecture | Keith Patrick Darwin, Mark Robert Chaffee, Harold Frederick Clark, Jr. | 2003-11-11 |
| 6574653 | Blackboard-centric layered software architecture | Keith Patrick Darwin, Mark Robert Chaffee, Harold Frederick Clark, Jr. | 2003-06-03 |
| 6256679 | Blackboard-centric layered software architecture for an embedded airborne fuel gauging subsystem | Keith Patrick Darwin, Mark Robert Chaffee, Harold Frederick Clark, Jr. | 2001-07-03 |