JO

Johannes Petrus Maria Opperman

📍 Bovenkarspel, NL: #3 of 6 inventorsTop 50%
Overall (All Time): #3,214,902 of 4,157,543Top 80%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8220850 Impact-absorbing element for a vehicle and methods of producing the same Petrus Van Der Velden, Cornelis Gerardus Van Koert 2012-07-17