Inventor
JOHNS JEFF WILLIAM
US5 patents
⚠️ This page may combine multiple inventors who share the name “JOHNS JEFF WILLIAM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CHEVRON USA INC
4 patentsUS10934493B1Mar 2, 2021
Extraction of heavy polynuclear aromatics from heavy oil
CHEVRON USA INC2 citations71
US10413877B1Sep 17, 2019
Catalyst dumping spool assembly
CHEVRON USA INC2 citations63
US9545649B2Jan 17, 2017
Method for safely and quickly shutting down and cleaning a hydroprocessing reactor of spent catalyst via a water flooding technique
CHEVRON USA INC4 citations63
US10350565B2Jul 16, 2019
Catalyst dumping spool assembly
CHEVRON USA INC0 citations42