Leonhardt; Patrick A.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Leonhardt; Patrick A..The latest application filed is for "crash attenuator".
- Leonhardt; Patrick A. - Loomis CA
- Leonhardt; Patrick A. - Rocklin CA US
- Leonhardt, Patrick A. - Yuba City CA
| Patent | Date |
|---|---|
| End terminal Grant RE47,626 - Smith , et al. O | 2019-10-01 |
| Frangible post for highway barrier end terminals Grant 10,047,488 - Leonhardt August 14, 2 | 2018-08-14 |
| Energy absorbing vehicle barrier Grant 9,790,653 - Thompson , et al. October 17, 2 | 2017-10-17 |
| Crash attenuator Grant 9,399,845 - Buehler , et al. July 26, 2 | 2016-07-26 |
| Guardrail system with a releasable post Grant 9,200,417 - Leonhardt , et al. December 1, 2 | 2015-12-01 |
| Crash Attenuator App 20150069771 - BUEHLER; MICHAEL J. ; et al. | 2015-03-12 |
| End terminal Grant 8,905,382 - Smith , et al. December 9, 2 | 2014-12-09 |
| Guardrail System With A Releasable Post App 20140145132 - LEONHARDT; PATRICK A. ; et al. | 2014-05-29 |
| Frangible Post For Highway Barrier End Terminals App 20140110652 - LEONHARDT; PATRICK A. | 2014-04-24 |
| Energy Absorbing Vehicle Barrier App 20130266369 - Thompson; Sean ; et al. | 2013-10-10 |
| Energy absorbing vehicle barrier Grant 8,469,626 - Thompson , et al. June 25, 2 | 2013-06-25 |
| Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereof Grant 8,360,400 - Leonhardt , et al. January 29, 2 | 2013-01-29 |
| Method for transferring a barrier Grant 8,348,546 - Welch , et al. January 8, 2 | 2013-01-08 |
| End Terminal App 20120217459 - Smith; Brian ; et al. | 2012-08-30 |
| Guardrail Assembly, Breakaway Support Post For A Guardrail And Methods For The Assembly And Use Thereof App 20120211710 - Leonhardt; Patrick A. ; et al. | 2012-08-23 |
| Guardrail assembly, breakaway support post for a guardrail and methods for the assembly and use thereof Grant 8,215,619 - Leonhardt , et al. July 10, 2 | 2012-07-10 |
| Method For Transferring A Barrier App 20120128418 - Welch; James B. ; et al. | 2012-05-24 |
| Energy absorbing vehicle barrier Grant 8,182,169 - Thompson , et al. May 22, 2 | 2012-05-22 |
| Barrier transfer device, system and method for the use thereof Grant 8,109,692 - Welch , et al. February 7, 2 | 2012-02-07 |
| Energy Absorbing Vehicle Barrier App 20110255916 - THOMPSON; SEAN ; et al. | 2011-10-20 |
| Energy Absorbing Vehicle Barrier App 20110217115 - Thompson; Sean ; et al. | 2011-09-08 |
| Energy absorbing vehicle barrier Grant 7,950,870 - Thompson , et al. May 31, 2 | 2011-05-31 |
| Guardrail Assembly, Breakaway Support Post For A Guardrail And Methods For The Assembly And Use Thereof App 20100243978 - LEONHARDT; PATRICK A. ; et al. | 2010-09-30 |
| Barrier transfer device, system and method for the use thereof App 20090074507 - Welch; James B. ; et al. | 2009-03-19 |
| Roadway freezing point monitoring system and method Grant 7,090,392 - Leonhardt August 15, 2 | 2006-08-15 |
| Anti-icing spray system App 20060113401 - Leonhardt; Patrick A. ; et al. | 2006-06-01 |
| Vehicle mounted crash attenuator Grant 6,905,282 - Leonhardt , et al. June 14, 2 | 2005-06-14 |
| Roadway freezing point monitoring system and method App 20050058177 - Leonhardt, Patrick A. | 2005-03-17 |
| Vehicle mounted crash attenuator App 20040145173 - Leonhardt, Patrick A. ; et al. | 2004-07-29 |
| Roadway freezing point monitoring system and method Grant 6,695,469 - Leonhardt February 24, 2 | 2004-02-24 |
| Highway crash cushion App 20030215285 - Leonhardt, Patrick A. ; et al. | 2003-11-20 |
| Roadway freezing point monitoring system and method App 20030103547 - Leonhardt, Patrick A. | 2003-06-05 |
| Vehicle mounted crash attenuator App 20030077119 - Leonhardt, Patrick A. ; et al. | 2003-04-24 |
| Highway crash cushion Grant 6,481,920 - Leonhardt , et al. November 19, 2 | 2002-11-19 |
| Self-restoring highway crash attenuator Grant 6,427,983 - Leonhardt , et al. August 6, 2 | 2002-08-06 |
| Adjustable tailgate mount for truck mounted attenuator Grant 6,244,637 - Leonhardt , et al. June 12, 2 | 2001-06-12 |
| Highway barrier and guardrail Grant 5,967,497 - Denman , et al. October 19, 1 | 1999-10-19 |
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