JV

John A. van Velthuijsen

PB Purac Biochem Bv: 1 patents #90 of 186Top 50%
📍 Gorinchem, NL: #33 of 85 inventorsTop 40%
Overall (All Time): #2,258,248 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5726303 Method of preparing lacitol monohydrate and dihydrate Christiaan F. Wijnman, Hendrik van den Berg 1998-03-10
5531983 Oral hygiene preparation 1996-07-02