Inventor

RICKE FRANZ

DE2 patents

⚠️ This page may combine multiple inventors who share the name “RICKE FRANZ”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HENKEL KGAA

1 patent

US5516372AMay 14, 1996

Process for phosphating steel strip galvanized on one side

HENKEL KGAA6 citations56

COLLARDIN GMBH GERHARD

1 patent

US4497668AFeb 5, 1985

Phosphating process for zinc-plated metals

COLLARDIN GMBH GERHARD4 citations53