Issued Patents 2023
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11814263 | Counterweight for an elevator system and elevator system equipped with the counterweight | Erich Bütler, Romeo Lo Jacono | 2023-11-14 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11814263 | Counterweight for an elevator system and elevator system equipped with the counterweight | Erich Bütler, Romeo Lo Jacono | 2023-11-14 |