JL

Jan B. Lefers

NK N. V. Kema: 2 patents #3 of 29Top 15%
📍 Arnhem, NL: #89 of 333 inventorsTop 30%
Overall (All Time): #2,289,551 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5453254 Apparatus for effecting chemical and/or physical reactions Pieter Lodder 1995-09-26
5158754 Process and apparatus for effecting chemical and/or physical reactions Pieter Lodder 1992-10-27