Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6638188 | Practice hockey puck | Arthur Kleinpell, Richard Allen Hartman | 2003-10-28 |
| 6542536 | Spread spectrum communications with selectable data transfer rates | John Erik Hershey, John Anderson Fergus Ross, Naofal Al-Dhahir, Mark Lewis Grabb, Richard Louis Frey +2 more | 2003-04-01 |