Hans Ries

DA Degussa Ag: 1 patents #70 of 269Top 30%

📍 Marl, DE: #6 of 24 inventorsTop 25%

Overall (2003): #215,923 of 273,478Top 80%

Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6528137	Multilayer plastic pipe having a segmented barrier layer	Juergen Franosch, Guido Schmitz	2003-03-04