Inventor · disambiguated record
Lakdas Nanayakkara
Also filed as: NANAYAKKARA LAKDAS
35 granted patents·7 pending applications·459 citations·filing 1992–2021
98Inventor score
Files withNANAYAKKARA LAKDAS32
Top patents by PatentIndex Score
42 records- 0193USD361042SCombined wristwatch and pager with band portionsNANAYAKKARA LAKDAS·Filed 1994·Granted Aug 8, 1995·42 cites·1 claims
- 0291US7571577B2Blast protective barrier systemNANAYAKKARA LAKDAS·Filed 2007·Granted Aug 11, 2009·22 cites·21 claims
- 0391US6578338B1Constructional brickFiled 2000·Granted Jun 17, 2003·61 cites·2 claims
- 0483US7051484B2Metal stud frame element construction panelNANAYAKKARA LAKDAS·Filed 2003·Granted May 30, 2006·30 cites·6 claims
- 0581US8749086B2Deep water hydro-electric power systemNANAYAKKARA LAKDAS·Filed 2013·Granted Jun 10, 2014·4 cites·20 claims
- 0680US6550208B2Constructional components for use in a wall structureFiled 2001·Granted Apr 22, 2003·34 cites·28 claims
- 0779US9340977B2Multi-element constructional assembly for joist girdersNANAYAKKARA LAKDAS·Filed 2015·Granted May 17, 2016·4 cites·5 claims
- 0878US7165916B2Method of on-site construction of concrete column and panel fence systemNANAYAKKARA LAKDAS·Filed 2004·Granted Jan 23, 2007·22 cites·4 claims
- 0977USD686756SConstructional long blockNANAYAKKARA LAKDAS·Filed 2012·Granted Jul 23, 2013·21 cites·1 claims
- 1076US9067652B2Surfboard with safety mechanismNANAYAKKARA LAKDAS·Filed 2013·Granted Jun 30, 2015·5 cites·6 claims
- 1172US9890533B2Metal stud frame elementNANAYAKKARA LAKDAS·Filed 2015·Granted Feb 13, 2018·2 cites·10 claims
- 1272US8987932B2Deep water hydro-electric power systemNANAYAKKARA LAKDAS·Filed 2014·Granted Mar 24, 2015·2 cites·22 claims
- 1372US6867697B2System for guiding the visually handicappedFiled 2002·Granted Mar 15, 2005·24 cites·16 claims
- 1469US6988347B2Metal stud frame elementNANAYAKKARA LAKDAS·Filed 2003·Granted Jan 24, 2006·15 cites·12 claims
- 1568USD361723SCombined wristwatch and pager with band portionsNANAYAKKARA LAKDAS·Filed 1993·Granted Aug 29, 1995·13 cites·1 claims
- 1665US7308778B2Metal stud frameNANAYAKKARA LAKDAS·Filed 2003·Granted Dec 18, 2007·13 cites·4 claims
- 1765US6105330AConstructional components for use in a wall structureFiled 1997·Granted Aug 22, 2000·40 cites·8 claims
- 1864USD691287SSquare masonry blockNANAYAKKARA LAKDAS·Filed 2013·Granted Oct 8, 2013·9 cites·1 claims
- 1964USD365285SCombined wristwatch and pager with band portionsNANAYAKKARA LAKDAS·Filed 1993·Granted Dec 19, 1995·11 cites·1 claims
- 2062USD361724SCombined wristwatch and pager with band portionsNANAYAKKARA LAKDAS·Filed 1993·Granted Aug 29, 1995·10 cites·1 claims
- 2161USD691288SInterlocking pavement blockNANAYAKKARA LAKDAS·Filed 2013·Granted Oct 8, 2013·8 cites·1 claims
- 2260US6615563B1Metal stud frame elementFiled 2000·Granted Sep 9, 2003·7 cites·1 claims
- 2359USD364570SCombined wristwatch and pager with band portionsNANAYAKKARA LAKDAS·Filed 1993·Granted Nov 28, 1995·9 cites·1 claims
- 2456US11660367B2Airborn pathogen disenfecting system for an HVAC systemNANAYAKKARA LAKDAS·Filed 2021·Granted May 30, 2023·0 cites·9 claims
- 2556US2007056240A1Press-formable light-gauge truss framing elementNANAYAKKARA LAKDAS·Filed 2005·Application pending·0 cites
- 2655US2006242922A1Multi-element constructional assemblyNANAYAKKARA LAKDAS·Filed 2005·Application pending·0 cites
- 2751USD675749SElongate inter-locking construction blockNANAYAKKARA LAKDAS·Filed 2012·Granted Feb 5, 2013·7 cites·1 claims
- 2849USD674917SElongate inter-locking construction blockNANAYAKKARA LAKDAS·Filed 2012·Granted Jan 22, 2013·6 cites·1 claims
- 2948US2004261332A1Blast protective barrier systemFiled 2003·Application pending·0 cites
- 3046USD362394SCombined wristwatch and pager with band portionsNANAYAKKARA LAKDAS·Filed 1993·Granted Sep 19, 1995·5 cites·1 claims
- 3146US2012036813A9Multi-element constructional assemblyNANAYAKKARA LAKDAS·Filed 2010·Application pending·0 cites
- 3245US2015059275A1Construction System Using Metal Stud Frame ElementNANAYAKKARA LAKDAS·Filed 2013·Application pending·0 cites
- 3343USD674918SSquare masonry blockNANAYAKKARA LAKDAS·Filed 2012·Granted Jan 22, 2013·3 cites·1 claims
- 3442USD683055SInter-locking construction blockNANAYAKKARA LAKDAS·Filed 2012·Granted May 21, 2013·4 cites·1 claims
- 3542US2004265070A1Earth retaining and geo-grid wall systemFiled 2003·Application pending·0 cites
- 3640USD679416SGarden blockNANAYAKKARA LAKDAS·Filed 2012·Granted Apr 2, 2013·3 cites·1 claims
- 3737US6167674B1Light-gauge truss framing elementFiled 1998·Granted Jan 2, 2001·9 cites·5 claims
- 3836USD695914SInter-locking construction blockNANAYAKKARA LAKDAS·Filed 2012·Granted Dec 17, 2013·2 cites·1 claims
- 3934US5372461APassive resistive retaining wall structureFiled 1993·Granted Dec 13, 1994·6 cites·26 claims
- 4034US2016307561A1System for Providing Assistance to the Visually ImpairedNANAYAKKARA LAKDAS·Filed 2016·Application pending·0 cites
- 4131US5222836APassive resistive retaining wall structureNANAYAKKARA LAKDAS·Filed 1992·Granted Jun 29, 1993·3 cites·10 claims
- 4230US5581961APortal frame systemFiled 1993·Granted Dec 10, 1996·3 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →