Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12031438 | Cutter head arrangement | Nicolaas Bodenstein Goodwin | 2024-07-09 |
| 11434762 | Mobile underground tunnel borer arrangement | Gerhard Pretorius, Johannes Nicolaas Jacobus Calitz, Williem Hermanus Roothman | 2022-09-06 |
| 10947845 | Shaft enlargement arrangement for a boring system | Nicolaas Bodenstein Goodwin, Daniel Coenraad Pretorius, Louis Germishuys, Gerhard Pretorius | 2021-03-16 |
| 10697246 | Shaft enlargement arrangement for a boring system | Nikolaus Kleuters, Daniel Coenraad Pretorius, Louis Germishuys, Nicolaas Bodenstein Goodwin, Gareth Robert Sheppard | 2020-06-30 |