Inventor

WALTER JOSEPH

US2 patents

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

ZHANG WENLIN

1 patent

US9312557B2Apr 12, 2016

Fuel cell apparatus and method for downhole power systems

ZHANG WENLIN16 citations89

SCHLUMBERGER TECHNOLOGY CORP

1 patent

US10113398B2Oct 30, 2018

Fuel cell apparatus and method for downhole power systems

SCHLUMBERGER TECHNOLOGY CORP0 citations49