Inventor
WIELENGA BOB L
US5 patents
Patents
5 patentsUS7827717B1Nov 9, 2010
Foldable traffic sign
TRAFFIX DEVICES INC3 citations59
US12125363B2Oct 22, 2024
Impact detecting and tracking systems and methods for vehicle crash attenuator systems
TRAFFIX DEVICES INC0 citations58
US11699339B2Jul 11, 2023
Impact detecting and tracking systems and methods for vehicle crash attenuation systems
TRAFFIX DEVICES INC0 citations58
US11417191B2Aug 16, 2022
Impact detecting and tracking systems and methods for vehicle crash attenuator systems
TRAFFIX DEVICES INC1 citations58
US7444774B1Nov 4, 2008
Foldable traffic sign
TRAFFIX DEVICES INC0 citations48