P

Inventor

SPENCE WILLIAM R

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

GENTEX CORP

7 patents

OSTREKO JOHN B

1 patent

WATSON ALAN R

1 patent

STAM JOSEPH S

1 patent