Duckett; John W.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Duckett; John W..The latest application filed is for "method and apparatus for interconnecting movable roadway barriers".

Company Profile

0.11.1

Duckett; John W. - Carson City NV
Duckett; John W. - Tiburon CA
Duckett; John W. - Sausalito CA
Duckett; John W. - San Rafael CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Method for interconnecting a plurality of roadway barrier modules and controlling movement thereof Grant 6,632,044 - Duckett October 14, 2	2003-10-14
Traffic barrier with liquid filled modules Grant 6,474,904 - Duckett , et al. November 5, 2	2002-11-05
Method and apparatus for interconnecting movable roadway barriers App 20020127057 - Duckett, John W.	2002-09-12
Non-redirective gating crash cushion apparatus for movable, permanent and portable roadway barriers Grant 6,428,237 - Duckett August 6, 2	2002-08-06
Vehicular traffic barrier system Grant 6,413,009 - Duckett July 2, 2	2002-07-02
Four-wheel, double bogey for a lane barrier positioning vehicle Grant 5,885,046 - Peek , et al. March 23, 1	1999-03-23
Roadway barrier module, system and method Grant 5,387,049 - Duckett February 7, 1	1995-02-07
Roadway with uni-directional light reflective lane marker Grant 5,006,010 - Duckett April 9, 1	1991-04-09
Pre-loaded hinges for lane barrier system Grant 4,828,425 - Duckett * May 9, 1	1989-05-09
Lane barrier system with pivot control and method Grant 4,815,889 - Duckett March 28, 1	1989-03-28
Anti-crash lane barrier with self-centering hinges Grant 4,806,044 - Duckett February 21, 1	1989-02-21
Flexible surface mount delineator Grant 4,636,108 - Duckett January 13, 1	1987-01-13

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