P

Inventor

SIEGFRIED DAVID L

US10 patents
⚠️ This page may combine multiple inventors who share the name “SIEGFRIED DAVID L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

COLUMBIA INSURANCE CO

3 patents

HOECHST AG

2 patents

UNIV LEHIGH

1 patent

JOHNSON & JOHNSON CONSUMER

1 patent

BAYER AG

1 patent

HOECHST CELANESE CORP

1 patent

(unassigned)

1 patent