CW

Christian Wartel

GF Gaz De France: 1 patents #66 of 236Top 30%
Overall (All Time): #2,236,911 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6142165 Method and apparatus for installing a branch connector from the top of an excavation Dominique Pfeiffer, Patrick Le Cointe 2000-11-07
6050351 Drilling hole system for horizontal boreholes Josef Eckenfels, Herbert Haas, Norbert Prinz, Dominique Pfeiffer 2000-04-18