Inventor · disambiguated record
William D. Lockwood
Also filed as: LOCKWOOD WILLIAM · LOCKWOOD WILLIAM D
17 granted patents·5 pending applications·731 citations·filing 1983–2018
96Inventor score
Files withCON SPAN BRIDGE SYSTEMS LTD5CON SPAN CULVERT SYSTEMS INC4CON SPAN BRIDGE SYSTEMS INC3CONTECH BRIDGE SOLUTIONS INC2LOCKWOOD JAMES D2
Top patents by PatentIndex Score
22 records- 0195US9175670B2Precast concrete post tensioned segmented wind turbine towerLOCKWOOD JAMES D·Filed 2013·Granted Nov 3, 2015·23 cites·6 claims
- 0295USD426321SComposite bridge deck pultrusionCON/SPAN BRIDGE SYSTEMS INC·Filed 1998·Granted Jun 6, 2000·71 cites·1 claims
- 0394US4993872APrecast concrete culvert systemCON SPAN CULVERT SYSTEMS INC·Filed 1989·Granted Feb 19, 1991·96 cites·22 claims
- 0491US5894003AMethod of strengthening an existing reinforced concrete memberFiled 1997·Granted Apr 13, 1999·58 cites·12 claims
- 0591USD406902SConcrete bridge sectionCON/SPAN BRIDGE SYSTEMS INC·Filed 1997·Granted Mar 16, 1999·42 cites·1 claims
- 0689US4854775APrecast concrete culvert systemCON SPAN CULVERT SYSTEMS INC·Filed 1988·Granted Aug 8, 1989·60 cites·12 claims
- 0788US4797030APrecast concrete culvert systemCON SPAN CULVERT SYSTEMS INC·Filed 1987·Granted Jan 10, 1989·59 cites·8 claims
- 0887US6094881ABox shaped structural member with pultruded flanges and connecting websCON SPAN BRIDGE SYSTEMS INC·Filed 1999·Granted Aug 1, 2000·80 cites·9 claims
- 0984US6854928B2Precast concrete culvert systemCON SPAN BRIDGE SYSTEMS LTD·Filed 2003·Granted Feb 15, 2005·30 cites·10 claims
- 1083USD490533SConcrete tunnel for a rapid transit trainCON SPAN BRIDGE SYSTEMS LTD·Filed 2003·Granted May 25, 2004·29 cites·1 claims
- 1182US7001110B2Precast concrete retaining wallCON SPAN BRIDGE SYSTEMS LTD·Filed 2004·Granted Feb 21, 2006·27 cites·9 claims
- 1282USD484610SConcrete tunnel for a rapid transit trainCON SPAN BRIDGE SYSTEMS LTD·Filed 2003·Granted Dec 30, 2003·28 cites·1 claims
- 1382US6416693B1Method of strengthening an existing reinforced concrete memberFiled 2000·Granted Jul 9, 2002·25 cites·15 claims
- 1480US4595314APrecast concrete culvert sectionLOCKWOOD WILLIAM D·Filed 1983·Granted Jun 17, 1986·44 cites·10 claims
- 1578US4687371APrecast concrete culvert sectionCON SPAN CULVERT SYSTEMS INC·Filed 1986·Granted Aug 18, 1987·44 cites·12 claims
- 1659USD573722SPrecast concrete support for a bridgeCONTECH BRIDGE SOLUTIONS INC·Filed 2007·Granted Jul 22, 2008·12 cites·1 claims
- 1754US2019106856A1Precast concrete post tensioned segmented wind turbine towerWIND TOWER TECH LLC·Filed 2018·Application pending·0 cites
- 1854US2016017868A1Precast concrete post tensioned segmented wind turbine towerLOCKWOOD JAMES D·Filed 2015·Application pending·0 cites
- 1947US2007261341A1Open bottom fiber reinforced precast concrete arch unitCONTECH BRIDGE SOLUTIONS INC·Filed 2007·Application pending·0 cites
- 2044US2006201091A1Open bottom fiber reinforced precast concrete arch unitCON SPAN BRIDGE SYSTEMS LTD·Filed 2005·Application pending·0 cites
- 2137US2004231350A1Compact air conditioning mixer systemFiled 2003·Application pending·0 cites
- 2232USD579575SComposite plastics bridge unitLOCKWOOD TECHNOLOGIES LTD·Filed 2007·Granted Oct 28, 2008·3 cites·1 claims
Join the waitlist — get patent alerts
Get an alert when William D. Lockwood files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →