P

Inventor

DEROGATIS DAVID

US3 patents
⚠️ This page may combine multiple inventors who share the name “DEROGATIS DAVID”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ELK PREMIUM BUILDING PROD INC

1 patent

BUILDING MATERIALS INVEST CORP

1 patent

DEROGATIS DAVID

1 patent