Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7261437 | Wedge-based lamp with LED light engine and method of making the lamp | Charles M. Coushaine, Thomas Tessnow, Robert Colburn | 2007-08-28 |
| 7121691 | Lamp assembly with interchangeable light distributing cap | Charles M. Coushaine, Brad Ernest, Thomas Tessnow | 2006-10-17 |
| 6957906 | LED light source mimicking a filamented lamp | Charles M. Coushaine, Michael Tucker, Thomas Tessnow | 2005-10-25 |
| 6880962 | LED light source mimicking a filamented lamp | Charles M. Coushaine, Michael Tucker, Thomas Tessnow | 2005-04-19 |