Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6906857 | Optical filters for manipulating spectral power distribution in accelerated weathering devices | Richard Fischer, Bradley D. Guth, Warren Ketola | 2005-06-14 |
| 6859309 | Optical filters for manipulating spectral power distribution in accelerated weathering devices | Richard Fischer, Bradley D. Guth, Warren Ketola | 2005-02-22 |