Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8444740 | Nonwoven fabric for exhaust-gas treatment, exhaust-gas purification device and method for producing a nonwoven fabric for exhaust-gas treatment | Hubertus Kotthoff, Stefan Seeliger, Ludwig Wieres | 2013-05-21 |
| 8261962 | Method for brazing a metallic honeycomb body for exhaust gas treatment and apparatus for carrying out the method | Hans-Peter Caspar, Hubertus Kotthoff, Jörg Gutowski, Ludwig Wieres | 2012-09-11 |