Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8791164 | Device and method for increasing the effectiveness processes of catalytic chemical processes | — | 2014-07-29 |
| 5588269 | Prefabricated construction system for a timber house | — | 1996-12-31 |
| 4228625 | Construction system | Dittmar Ruffer | 1980-10-21 |