Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7035512 | Method for providing a broadband infrastructure in a building by means of optical fibers | — | 2006-04-25 |
| 7018136 | Method installing a duct, device for carrying out said method, and a tape-shape element for use with said method | Frank Martin Kerling | 2006-03-28 |
| 6824329 | Method and apparatus for installing a duct around a longitunal member present at the stretch of installation | Gerard Plumettaz | 2004-11-30 |
| 6641331 | Method for installing a duct in the ground and device for performing this method | — | 2003-11-04 |
| 5639183 | Installing cable-ducts | Willem Griffioen, Hubertus Augustinus Leonardus Maria De Graaf | 1997-06-17 |