Enno Frank Wijn

Shell Oil Compny: 2 patents #60 of 337Top 20%

Overall (1989): #28,276 of 140,708Top 25%

Patents 1989

Issued Patents 1989

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4863568	Apparatus for fractional distillation under vacuum	—	1989-09-05
4863570	Process for fractional distillation under vacuum	—	1989-09-05