UN

Ulf Nummelin

Google: 1 patents #14,769 of 22,993Top 65%
Overall (All Time): #3,854,923 of 4,157,543Top 95%
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Issued Patents All Time

Patent #TitleCo-InventorsDate
5130469 Derivatives of N,N-bis(2,2-dimethyl-2-carboxy-ethyl)amine, manufacturing procedure and use of same Leila Lahtinen, Oili Riutta, Pirkko Vohlonen, Kjell Ankner, Eija Valtonen +1 more 1992-07-14