Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12077974 | Scaffolding, coupling device and method for erecting a scaffolding | Antonius Johannus Marinus Van Leent, Ralph Gerardus Franciscus Herman Kweens | 2024-09-03 |
| 10174512 | Suspended scaffolding and suspending device therefore | Ralph Gerardus Franciscus Herman Kweens, Cornelus Jacobus Scholten | 2019-01-08 |
| D757301 | Safety barrier for a ladder or scaffold | — | 2016-05-24 |