Inventor
MCKENNEY JOHN D
US21 patents
⚠️ This page may combine multiple inventors who share the name “MCKENNEY JOHN D”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TRAFFIX DEVICES INC
9 patentsUS6003827ADec 21, 1999
Universal sign holder
TRAFFIX DEVICES INC26 citations92
US5611509AMar 18, 1997
Quick release mechanism for a display stand
TRAFFIX DEVICES INC26 citations92
US5540007AJul 30, 1996
Highway signs capable of being rolled up
TRAFFIX DEVICES INC26 citations92
US5446984ASep 5, 1995
Highway signs capable of being rolled up and improved mounting brackets for the signs
TRAFFIX DEVICES INC31 citations92
US5201599AApr 13, 1993
Stabilized barrel-like traffic control element
TRAFFIX DEVICES INC47 citations92
US5026204AJun 25, 1991
Traffic control element and method of erecting and stabilizing same
TRAFFIX DEVICES INC43 citations92
US7794174B2Sep 14, 2010
Crash impact attenuator systems and methods
TRAFFIX DEVICES INC13 citations84
US6047941AApr 11, 2000
Flag holder
TRAFFIX DEVICES INC14 citations74
US5624092AApr 29, 1997
Adjustable sign mounting brackets
TRAFFIX DEVICES INC8 citations74