Inventor · disambiguated record
Dennis D. Simpson
Also filed as: SIMPSON DENNIS · SIMPSON DENNIS D
32 granted patents·11 pending applications·514 citations·filing 1978–2024
98Inventor score
Top patents by PatentIndex Score
43 records- 0198US9752334B2Foldable work platform deviceTRICAM INDUSTRIES INC·Filed 2016·Granted Sep 5, 2017·31 cites·14 claims
- 0296US10138680B2Hinged tray for ladder or step stoolTRICAM INDUSTRIES INC·Filed 2015·Granted Nov 27, 2018·43 cites·6 claims
- 0396US7128187B2Stepladder with pivoting utility trayTRICAM INDUSTRIES INC·Filed 2003·Granted Oct 31, 2006·50 cites·26 claims
- 0494USD776826SWork platformTRICAM INDUSTRIES INC·Filed 2015·Granted Jan 17, 2017·27 cites·1 claims
- 0593US10648234B2Step ladderTRICAM INDUSTRIES INC·Filed 2015·Granted May 12, 2020·26 cites·28 claims
- 0692US11299187B2Dump cartTRICAM INDUSTRIES INC·Filed 2019·Granted Apr 12, 2022·11 cites·15 claims
- 0792US4175628ASteering control system for dual path hydrostatic vehicleEATON CORP·Filed 1978·Granted Nov 27, 1979·47 cites·8 claims
- 0890US11220862B2Step ladderTRICAM INDUSTRIES INC·Filed 2020·Granted Jan 11, 2022·3 cites·20 claims
- 0987US11391089B2Stepladder folding legTRICAM INDUSTRIES INC·Filed 2019·Granted Jul 19, 2022·7 cites·20 claims
- 1087USD840055SStep ladderTRICAM INDUSTRIES INC·Filed 2018·Granted Feb 5, 2019·31 cites·1 claims
- 1187US9869125B2Latch for ladder or step stoolTRICAM INDUSTRIES INC·Filed 2016·Granted Jan 16, 2018·11 cites·18 claims
- 1286US7188706B2Stepladder with pivoting utility trayTRICAM INDUSTRIES INC·Filed 2006·Granted Mar 13, 2007·11 cites·6 claims
- 1385US11505994B2Top cap for multi-position ladderTRICAM INDUSTRIES INC·Filed 2019·Granted Nov 22, 2022·6 cites·20 claims
- 1485US7887141B2Articulated utility cartTRICAM INDUSTRIES INC·Filed 2006·Granted Feb 15, 2011·20 cites·19 claims
- 1584US6857503B2Convertible ladderTRICAM INDUSTRIES INC·Filed 2003·Granted Feb 22, 2005·29 cites·5 claims
- 1683USD710031SStep stoolTRICAM INDUSTRIES INC·Filed 2012·Granted Jul 29, 2014·29 cites·1 claims
- 1781US11629514B2Work platformTRICAM INDUSTRIES INC·Filed 2021·Granted Apr 18, 2023·1 cites·19 claims
- 1879USD826507SLog cartTRICAM INDUSTRIES INC·Filed 2016·Granted Aug 21, 2018·20 cites·1 claims
- 1978USD855833SLadder railTRICAM INDUSTRIES INC·Filed 2017·Granted Aug 6, 2019·18 cites·1 claims
- 2077US12084917B2Stepladder trayTRICAM INDUSTRIES INC·Filed 2020·Granted Sep 10, 2024·1 cites·10 claims
- 2177US2024392627A1Stepladder trayTRICAM INDUSTRIES INC·Filed 2024·Application pending·0 cites
- 2277US2025091631A1Dump Cart Bold SystemTRICAM INDUSTRIES INC·Filed 2024·Application pending·0 cites
- 2377US2023340792A1Work platformTRICAM INDUSTRIES INC·Filed 2023·Application pending·0 cites
- 2473US2024182095A1Dump cart bolt systemTRICAM INDUSTRIES INC·Filed 2024·Application pending·0 cites
- 2572US7818865B2Method of making a dumping utility cartTRICAM INDUSTRIES INC·Filed 2008·Granted Oct 26, 2010·7 cites·20 claims
- 2670US7441792B2Trailer with convertible handleTRICAM INDUSTRIES INC·Filed 2007·Granted Oct 28, 2008·8 cites·19 claims
- 2769USD897679SCart tubTRICAM INDUSTRIES INC·Filed 2019·Granted Oct 6, 2020·11 cites·1 claims
- 2869US2022364417A1Top cap for multi-position ladderTRICAM INDUSTRIES INC·Filed 2022·Application pending·0 cites
- 2968US8734376B2Perfusion system with RFIDSIMPSON DENNIS·Filed 2010·Granted May 27, 2014·8 cites·17 claims
- 3067US2022162910A1Step ladderTRICAM INDUSTRIES INC·Filed 2021·Application pending·0 cites
- 3167US2022316274A1Stepladder folding legTRICAM INDUSTRIES INC·Filed 2022·Application pending·0 cites
- 3266USD876744SDumping cartTRICAM INDUSTRIES INC·Filed 2018·Granted Feb 25, 2020·10 cites·1 claims
- 3365USD897680SCart tubTRICAM INDUSTRIES INC·Filed 2019·Granted Oct 6, 2020·9 cites·1 claims
- 3464USD819917SCartTRICAM INDUSTRIES INC·Filed 2016·Granted Jun 5, 2018·10 cites·1 claims
- 3564US7264082B2Convertible ladderTRICAM INDUSTRIES INC·Filed 2004·Granted Sep 4, 2007·12 cites·7 claims
- 3662US2024035339A1Adjustable hinge for a multi-position ladderTRICAM INDUSTRIES INC·Filed 2023·Application pending·0 cites
- 3757US2019226217A1Work platformTRICAM INDUSTRIES INC·Filed 2019·Application pending·0 cites
- 3853USD860476SHinge for a multi-position ladderTRICAM INDUSTRIES INC·Filed 2017·Granted Sep 17, 2019·6 cites·1 claims
- 3953US6886659B2Convertible ladderTRICAM INDUSTRIES INC·Filed 2002·Granted May 3, 2005·5 cites·15 claims
- 4049US9801687B2Perfusion system with RFIDSORIN GROUP ITALIA SRL·Filed 2014·Granted Oct 31, 2017·0 cites·12 claims
- 4149USD687614SCartTRICAM INDUSTRIES INC·Filed 2012·Granted Aug 6, 2013·6 cites·1 claims
- 4248US2014131138A1Folding stoolTRICAM INDUSTRIES INC·Filed 2013·Application pending·0 cites
- 4340US2018274296A1Adjustable hinge for a multi-position ladderTRICAM INDUSTRIES INC·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →