TH

Theo Adriaan Hansen

QB Quest International B.V.: 2 patents #25 of 168Top 15%
Overall (All Time): #2,258,689 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5814496 Process for demethylating S-methyl-mercapto compounds Michael Jansen, Marc Jos Elise Cornelis van der Maarel 1998-09-29
5731177 Process for demethylating dimethylsulfonium compounds Marc Jos Elise Cornelis van der Maarel 1998-03-24