FR

Francois Ruffenach

ON Onduline: 2 patents #1 of 24Top 5%
Overall (All Time): #1,998,850 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
9249541 Method of making a roof-covering element out of compression molded plant fibers impregnated with bitumen, and roof-covering element, in particular a ridge element, a fillet, a curb, or a hip Michel Thomas, Melih Kamil, Martin Foutel 2016-02-02
6173237 Optimization process of a bitumen/polymers mixture 2001-01-09