Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489716 | Compact, energy-saving lamp | Walter Tews, Ina Fethke, Jens Klimke | 2002-12-03 |
| 6085971 | Luminescent meta-borate substances | Walter Tews, Ina Fethke | 2000-07-11 |
GR
Gundula Roth
Seoul Semiconductor Co.: 40 patents #3 of 277Top 2%
Litec-Lp Gmbh: 10 patents #1 of 9Top 15%
Toyoda Gosei Co.: 8 patents #292 of 2,296Top 15%
Leuchtstoffwerk Breitungen Gmbh: 5 patents #3 of 33Top 10%
Tridonic Optoelectronics Gmbh: 5 patents #5 of 16Top 35%
Unknown: 4 patents #4,220 of 83,584Top 6%
Overall (All Time): #50,622 of 4,157,543Top 2%
52
Patents All Time