Jean M. van Langen

HB Hoogovens Groep B.V.: 2 patents #12 of 138Top 9%

📍 Akersloot, NL: #2 of 8 inventorsTop 25%

Overall (All Time): #2,344,272 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4687183	Apparatus for the production of liquid iron from iron oxide	—	1987-08-18
4579588	Method for the production of liquid iron from iron oxide	—	1986-04-01