Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11188601 | Diversifying search results | David Goldberg, Miroslav Melichar, Davide Libenzi | 2021-11-30 |
| 10888208 | Supply device for a cleaning machine which can be connected via at least one flexible hose | Helmut Barbisch | 2021-01-12 |