Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4683072 | Two-component cleaner and disinfectant tablet | Bernd-Dieter Holdt, Ronald Menke, Gerd Praus | 1987-07-28 |
| 4578207 | Two component cleaner and disinfectant tablet | Bernd-Dieter Holdt, Ronald Menke, Gerd Praus | 1986-03-25 |