LT

Ludwig Tumbrink

DA Dragoco Gerberding & Co. Ag: 1 patents #16 of 31Top 55%
📍 Ankum, DE: #11 of 26 inventorsTop 45%
Overall (All Time): #3,954,515 of 4,157,543Top 100%
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4753924 Process for the preparation of 4,4,7-trimethyl-3,4,7,8-tetrahydro-2(6H)-naphthalene-one Ernst-Joachim Brunke 1988-06-28