WN

Werner Naf

📍 Richterswil, CH: #29 of 88 inventorsTop 35%
Overall (All Time): #1,643,217 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5622209 Process for the sealing and internal repair of systems of laid conduits — 1997-04-22
5499659 Process for the sealing and internal repair of systems of laid conduits — 1996-03-19
5007461 Method for the cleaning of the interior of installed conduits — 1991-04-16