BS

Bernard Siegfried

📍 Annemasse, FR: #68 of 167 inventorsTop 45%
Overall (All Time): #2,305,403 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5262402 Process for preparing pyrimidinetrione derivatives Jindrich Vachta, Karel Valter, Stephane Hugentobler 1993-11-16
4611057 Process for preparing pyrimidinetrione derivatives Philippe Gold-Aubert, Diran Melkonian, Jindrich Vachta, Karel Valter, Stephane Hugentobler 1986-09-09