Inventor
LEONHARDT PATRICK A
US22 patents
⚠️ This page may combine multiple inventors who share the name “LEONHARDT PATRICK A”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ENERGY ABSORPTION SYSTEM
16 patentsUS6142452ANov 7, 2000
Highway barrier and guardrail
ENERGY ABSORPTION SYSTEM54 citations95
US6092959AJul 25, 2000
Method for decelerating a vehicle, highway crash cushion, and energy absorbing element therefor
ENERGY ABSORPTION SYSTEM69 citations95
US5967497AOct 19, 1999
Highway barrier and guardrail
ENERGY ABSORPTION SYSTEM68 citations95
US6481920B1Nov 19, 2002
Highway crash cushion
ENERGY ABSORPTION SYSTEM39 citations92
US6427983B1Aug 6, 2002
Self-restoring highway crash attenuator
ENERGY ABSORPTION SYSTEM32 citations92
US6244637B1Jun 12, 2001
Adjustable tailgate mount for truck mounted attenuator
ENERGY ABSORPTION SYSTEM36 citations92
US7950870B1May 31, 2011
Energy absorbing vehicle barrier
ENERGY ABSORPTION SYSTEM35 citations89
US6905282B2Jun 14, 2005
Vehicle mounted crash attenuator
ENERGY ABSORPTION SYSTEM28 citations89
US9399845B2Jul 26, 2016
Crash attenuator
ENERGY ABSORPTION SYSTEM8 citations84
US9200417B2Dec 1, 2015
Guardrail system with a releasable post
ENERGY ABSORPTION SYSTEM18 citations84
US9790653B2Oct 17, 2017
Energy absorbing vehicle barrier
ENERGY ABSORPTION SYSTEM6 citations83
US8360400B2Jan 29, 2013
Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereof
ENERGY ABSORPTION SYSTEM10 citations83
US8348546B2Jan 8, 2013
Method for transferring a barrier
ENERGY ABSORPTION SYSTEM7 citations82
US7090392B2Aug 15, 2006
Roadway freezing point monitoring system and method
ENERGY ABSORPTION SYSTEM10 citations74
US6695469B2Feb 24, 2004
Roadway freezing point monitoring system and method
ENERGY ABSORPTION SYSTEM12 citations74
USRE47626EOct 1, 2019
End terminal
ENERGY ABSORPTION SYSTEM0 citations52