P

Inventor

HELFRICH JOSEPH

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

ONSAGER MICHAEL GORDON

2 patents

BUCYRUS INTERNAT INC

1 patent

GRANDS CHAIS DE FRANCE S A S

1 patent

Les Grands Chais deFrance

1 patent

CATERPILLAR GLOBAL MINING LLC

1 patent