EG

Etienne Grappein

SP Speedinnov: 2 patents #1 of 4Top 25%
📍 Uffholtz, FR: #1 of 1 inventorsTop 100%
Overall (2020): #175,344 of 565,922Top 35%
2
Patents 2020

Issued Patents 2020

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10870438 Power car for high-speed train with internal overpressure Paul Preiss, Pierre Debost, Marion Faverger 2020-12-22
10864925 Power car for high-speed train Paul Preiss, Pierre Debost, Marion Faverger 2020-12-15