Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5435615 | Locking device for convertible tops | — | 1995-07-25 |
| 5222983 | Implantable prosthesis | Wolf-Dietrich Herold, Werner Zoellner | 1993-06-29 |
| 4522997 | Crosslinking agents for water-swellable polymers | Klaus Kuhlein | 1985-06-11 |
| 4521579 | High molecular weight water-soluble polymers useful in deoiling sand and rock masses | Friedrich Engelhardt, Walter Gulden, Jorg Hax | 1985-06-04 |
| 4451631 | Agent and method for deoiling sand and rock masses | Friedrich Engelhardt, Walter Gulden, Jorg Hax | 1984-05-29 |