Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4687380 | Tower structure and methods of fabricating such a structure | Kees Willemse | 1987-08-18 |
| 4607983 | Method of constructing an offshore tower structure | Maurice Uittenbogaard, Finn C. Michelsen | 1986-08-26 |
| 4557629 | Offshore tower structures | Maurice Uittenbogaard, Finn C. Michelsen, Pieter S. Heerema | 1985-12-10 |
| 4553878 | Offshore tower constructions and methods of erection and installation thereof | Kees Willemse, Finn C. Michelsen | 1985-11-19 |