P

Inventor

SZEMENYEI DEWEY P

US6 patents
⚠️ This page may combine multiple inventors who share the name “SZEMENYEI DEWEY P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AFTON CHEMICAL CORP

3 patents

PENNZOIL QUAKER STATE CO

2 patents

PENNZOIL

1 patent