Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7839066 | Strengthened arc discharge lamp | David M. Hrubowchak, Graham Wark, Steven A. Collins | 2010-11-23 |
| 7615930 | Shrouded arc discharge lamp suitable for downlighting applications | David M. Hrubowchak, Steven A. Collins | 2009-11-10 |
| D543289 | Envelope for a light bulb | David M. Hrubowchak, Steven A. Collins | 2007-05-22 |
| D540961 | Light bulb | David M. Hrubowchak, Steven A. Collins | 2007-04-17 |