Inventor · disambiguated record
Patrick A. Leonhardt
Also filed as: LEONHARDT PATRICK · LEONHARDT PATRICK A
24 granted patents·4 pending applications·503 citations·filing 1997–2025
97Inventor score
Files withENERGY ABSORPTION SYSTEM17LEONHARDT PATRICK A2THOMPSON SEAN2VALTIR LLC2ENERGY ABSORPTION SYSTEM INC1
Top patents by PatentIndex Score
28 records- 0193US9200417B2Guardrail system with a releasable postENERGY ABSORPTION SYSTEM·Filed 2013·Granted Dec 1, 2015·18 cites·22 claims
- 0292US7950870B1Energy absorbing vehicle barrierENERGY ABSORPTION SYSTEM·Filed 2009·Granted May 31, 2011·35 cites·32 claims
- 0392US5967497AHighway barrier and guardrailENERGY ABSORPTION SYSTEM·Filed 1997·Granted Oct 19, 1999·68 cites·35 claims
- 0491US6092959AMethod for decelerating a vehicle, highway crash cushion, and energy absorbing element thereforENERGY ABSORPTION SYSTEM·Filed 1998·Granted Jul 25, 2000·69 cites·43 claims
- 0590US6481920B1Highway crash cushionENERGY ABSORPTION SYSTEM·Filed 2000·Granted Nov 19, 2002·39 cites·34 claims
- 0689US8905382B2End terminalSMITH BRIAN·Filed 2012·Granted Dec 9, 2014·13 cites·11 claims
- 0789US8215619B2Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereofLEONHARDT PATRICK A·Filed 2009·Granted Jul 10, 2012·24 cites·20 claims
- 0887US6142452AHighway barrier and guardrailENERGY ABSORPTION SYSTEM·Filed 1999·Granted Nov 7, 2000·54 cites·21 claims
- 0986US8360400B2Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereofENERGY ABSORPTION SYSTEM·Filed 2012·Granted Jan 29, 2013·10 cites·20 claims
- 1083US8469626B2Energy absorbing vehicle barrierTHOMPSON SEAN·Filed 2010·Granted Jun 25, 2013·10 cites·8 claims
- 1183US6427983B1Self-restoring highway crash attenuatorENERGY ABSORPTION SYSTEM·Filed 2000·Granted Aug 6, 2002·32 cites·11 claims
- 1283US6244637B1Adjustable tailgate mount for truck mounted attenuatorENERGY ABSORPTION SYSTEM·Filed 2000·Granted Jun 12, 2001·36 cites·6 claims
- 1382US9399845B2Crash attenuatorENERGY ABSORPTION SYSTEM·Filed 2014·Granted Jul 26, 2016·8 cites·23 claims
- 1481US8182169B2Energy absorbing vehicle barrierTHOMPSON SEAN·Filed 2011·Granted May 22, 2012·10 cites·19 claims
- 1580US8348546B2Method for transferring a barrierENERGY ABSORPTION SYSTEM·Filed 2012·Granted Jan 8, 2013·7 cites·30 claims
- 1679US6905282B2Vehicle mounted crash attenuatorENERGY ABSORPTION SYSTEM·Filed 2003·Granted Jun 14, 2005·28 cites·26 claims
- 1777US6695469B2Roadway freezing point monitoring system and methodENERGY ABSORPTION SYSTEM·Filed 2001·Granted Feb 24, 2004·12 cites·12 claims
- 1876US12227910B2Crash cushionVALTIR LLC·Filed 2024·Granted Feb 18, 2025·0 cites·20 claims
- 1976US9790653B2Energy absorbing vehicle barrierENERGY ABSORPTION SYSTEM·Filed 2013·Granted Oct 17, 2017·6 cites·21 claims
- 2075US7090392B2Roadway freezing point monitoring system and methodENERGY ABSORPTION SYSTEM·Filed 2003·Granted Aug 15, 2006·10 cites·12 claims
- 2172US10047488B2Frangible post for highway barrier end terminalsLEONHARDT PATRICK A·Filed 2013·Granted Aug 14, 2018·5 cites·26 claims
- 2270US8109692B2Barrier transfer device, system and method for the use thereofWELCH JAMES B·Filed 2008·Granted Feb 7, 2012·9 cites·25 claims
- 2365US11970826B2Crash cushionTRINITY HIGHWAY PRODUCTS LLC·Filed 2021·Granted Apr 30, 2024·0 cites·30 claims
- 2451USRE47626EEnd terminalENERGY ABSORPTION SYSTEM·Filed 2016·Granted Oct 1, 2019·0 cites·20 claims
- 2550US2025230618A1Impact attenuatorVALTIR LLC·Filed 2025·Application pending·0 cites
- 2647US2006113401A1Anti-icing spray systemENERGY ABSORPTION SYSTEM·Filed 2004·Application pending·0 cites
- 2741US2003215285A1Highway crash cushionFiled 2002·Application pending·0 cites
- 2836US2003077119A1Vehicle mounted crash attenuatorENERGY ABSORPTION SYSTEM INC·Filed 2001·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →