Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7992685 | Optical cable lubricator with reservoir | Willem Griffioen, Cornelis van't Hul, Willem Greven, Patrick Menno Versteeg | 2011-08-09 |
| 7021426 | Optical cable installation with cable lubricator | Willem Griffioen, Cornelis Van 'T Hul, Willem Greven | 2006-04-04 |
| 6848541 | Optical cable installation with cable lubricator | Willem Griffioen, Cornelus Van T'Hul, Willem Greven | 2005-02-01 |