FR

Franciscus Roffelsen

SB Spiro Research B.V.: 1 patents #1 of 1Top 100%
📍 Helmond, NL: #5 of 19 inventorsTop 30%
Overall (2003): #225,775 of 273,478Top 85%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6526921 Method for operating a closed hot-water installation and apparatus to be used therewith 2003-03-04