Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D638147 | Lamp | — | 2011-05-17 |
| D636907 | Energy saving bulb | — | 2011-04-26 |
| 7928644 | Low pressure discharge lamp with envelope having double helix shape and sealed ends | Jozsef Tokes | 2011-04-19 |