Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8072140 | Metal halide fill for an electric high pressure discharge lamp and associated lamp | — | 2011-12-06 |
| 6946797 | Metal halide fill, and associated lamp | — | 2005-09-20 |
| 6400084 | Metal halide lamp | — | 2002-06-04 |
| 5920400 | Method and device for determining the purity and/or pressure of gases for electric lamps | Karen Twesten | 1999-07-06 |