Inventor
DUNCAN JEFFERY
US6 patents
⚠️ This page may combine multiple inventors who share the name “DUNCAN JEFFERY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HALL LOGIC INC
5 patentsUS11884116B2Jan 30, 2024
Weight distribution hitch with compact moment bar
HALL LOGIC INC4 citations71
US11878558B2Jan 23, 2024
Weight distribution hitch with improved pre-load adjustment range
HALL LOGIC INC3 citations71
US11820180B2Nov 21, 2023
Weight distribution hitch with pivoting latch
HALL LOGIC INC2 citations70
US11760142B2Sep 19, 2023
Weight distribution hitch with shock absorbing springs
HALL LOGIC INC2 citations70
US11673439B2Jun 13, 2023
Weight distribution hitch with angled moment bar for pre-load adjustment
HALL LOGIC INC1 citations59