Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489716 | Compact, energy-saving lamp | Walter Tews, Gundula Roth, Jens Klimke | 2002-12-03 |
| 6085971 | Luminescent meta-borate substances | Walter Tews, Gundula Roth | 2000-07-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489716 | Compact, energy-saving lamp | Walter Tews, Gundula Roth, Jens Klimke | 2002-12-03 |
| 6085971 | Luminescent meta-borate substances | Walter Tews, Gundula Roth | 2000-07-11 |