HH

Heiko Hellmers

CG Chemetall Gmbh: 1 patents #87 of 196Top 45%
Overall (All Time): #2,590,970 of 4,157,543Top 65%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11686000 Composition and method for the chromium-free pretreatment of aluminium surfaces Thomas Wendel, Norbert Maurus 2023-06-27