Inventor · disambiguated record
John W. Duckett
Also filed as: DUCKETT JOHN W
13 granted patents·633 citations·filing 1980–2002
94Inventor score
Top patents by PatentIndex Score
13 records- 0197US6413009B1Vehicular traffic barrier systemBARRIER SYSTEMS INC·Filed 2000·Granted Jul 2, 2002·96 cites·26 claims
- 0297US5387049ARoadway barrier module, system and methodBARRIER SYSTEMS INC·Filed 1993·Granted Feb 7, 1995·126 cites·19 claims
- 0394US6428237B1Non-redirective gating crash cushion apparatus for movable, permanent and portable roadway barriersBARRIER SYSTEMS INC·Filed 2000·Granted Aug 6, 2002·66 cites·9 claims
- 0492US6474904B1Traffic barrier with liquid filled modulesBARRIER SYSTEMS INC·Filed 2001·Granted Nov 5, 2002·63 cites·33 claims
- 0589US4806044AAnti-crash lane barrier with self-centering hingesBARRIER SYSTEMS INC·Filed 1988·Granted Feb 21, 1989·68 cites·28 claims
- 0683US6439802B1Interconnected telescoping movable roadway barrier modulesBARRIER SYSTEMS INC·Filed 2000·Granted Aug 27, 2002·29 cites·13 claims
- 0783US4828425APre-loaded hinges for lane barrier systemBARRIER SYSTEMS INC·Filed 1988·Granted May 9, 1989·51 cites·20 claims
- 0872US6632044B2Method for interconnecting a plurality of roadway barrier modules and controlling movement thereofBARRIER SYSTEMS INC·Filed 2002·Granted Oct 14, 2003·16 cites·8 claims
- 0971US5006010ARoadway with uni-directional light reflective lane markerDUCKETT JOHN W·Filed 1989·Granted Apr 9, 1991·35 cites·19 claims
- 1068US4815889ALane barrier system with pivot control and methodBARRIER SYSTEMS INC·Filed 1988·Granted Mar 28, 1989·29 cites·22 claims
- 1163US4636108AFlexible surface mount delineatorDUCKETT JOHN W·Filed 1984·Granted Jan 13, 1987·24 cites·4 claims
- 1253US5885046AFour-wheel, double bogey for a lane barrier positioning vehicleBARRIER SYSTEMS INC·Filed 1996·Granted Mar 23, 1999·23 cites·5 claims
- 1337US4306398AAirtight and deformable sealing gasket for greenhouse vent closuresDUCKETT JOHN W·Filed 1980·Granted Dec 22, 1981·7 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →