Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9174872 | Sulphur cement products | Willem Posthumus, Guy Lode Magda Maria Verbist | 2015-11-03 |
| 9017472 | Process for preparing a sulphur cement product | Paul De Boer, Yiu Chung Cheng, Michael David Lankshear, Guy Lode Magda Maria Verbist, Willem Posthumus | 2015-04-28 |