Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11530113 | Drive shaft for an elevator system | — | 2022-12-20 |
| 4371456 | Catalyst for direct hydration of ethylene to ethyl alcohol and process for preparation thereof | Vlastimil Kadlec, Vojtech Grosser | 1983-02-01 |