RS

R. Umar Hasan Saputra

Overall (All Time): #2,797,497 of 4,157,543Top 70%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10683243 Process for producing coal-based fertilizer and the products produced 2020-06-16