Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644542 | Enhanced-security delivery receptacles | Charles W. Langley, David E. Rankin, David S. Wick, Oscar Roper, Dale R. Westerfield | 2003-11-11 |
| 6644543 | Enhanced-security delivery receptacles with brick-in feature | Charles W. Langley, David E. Rankin, David S. Wick, Oscar Roper, Dale R. Westerfield | 2003-11-11 |
| 6588656 | Enhanced-security delivery receptacles for parcels | Charles W. Langley, David E. Rankin, David S. Wick, Oscar Roper, Dale R. Westerfield | 2003-07-08 |