Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8040259 | Systems and methods for alerting to traffic proximity in the airport environment | — | 2011-10-18 |
| 6691004 | Method for determining a currently obtainable climb gradient of an aircraft | Steven C. Johnson | 2004-02-10 |
| 6347263 | Aircraft terrain information system | Steven C. Johnson | 2002-02-12 |