P

Inventor

GROLL WERNER

DE15 patents
⚠️ This page may combine multiple inventors who share the name “GROLL WERNER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DEGUSSA

11 patents

GROLL WERNER

2 patents

MAY DITTMAR

1 patent

DEGUSSA ATIENGESELLSCHAFT

1 patent