Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9434818 | Polymerizable compositions, cured products obtained therewith, and use of these materials | Michael Popall, Ruth Houbertz-Krauss, Herbert Wolter, Kentaro Ohmori, Tetsuo Sato | 2016-09-06 |
| 7696295 | Condensation products of silicic acid derivatives and optical waveguide devices using the same | Naoyuki Kondo, Takao Hayashi, Michael Popall, Lothar Froehlich, Ruth Houbertz | 2010-04-13 |