P

Inventor

TONG DAVID YOUDONG

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

ECOLAB USA INC

6 patents

TONG DAVID YOUDONG

2 patents

NALCO ENERGY SERVICES LP

1 patent

NALCO ENERGY SERVICES

1 patent