Inventor
CLEVENGER JR JOHN W
US4 patents
⚠️ This page may combine multiple inventors who share the name “CLEVENGER JR JOHN W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FLEETGUARD INC
3 patentsUS6758980B2Jul 6, 2004
Liquid filter with separate and calibrated vapor release
FLEETGUARD INC49 citations94
US6641742B2Nov 4, 2003
Liquid filter with separate and calibrated vapor release
FLEETGUARD INC35 citations90
US6610198B1Aug 26, 2003
Liquid filter with change interval indicator
FLEETGUARD INC25 citations89