P

Inventor

SIGWORTH WILLIAM D

US12 patents
⚠️ This page may combine multiple inventors who share the name “SIGWORTH WILLIAM D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

UNIROYAL CHEM CO INC

7 patents

CROMPTON CORP

2 patents

CHEMTURA CORP

2 patents

CERNOHOUS JEFFREY J

1 patent