Inventor · disambiguated record
Dougan H. Clarke
Also filed as: CLARKE DOUGAN · CLARKE DOUGAN H
22 granted patents·8 pending applications·782 citations·filing 1999–2025
97Inventor score
Files withCLARKE DOUGAN H15TUUCI ENGINEERING & DESIGN INC7TUCCI ENGINEERING & DESIGN INC3TUUCI ENGINEERING AND DESIGN I1TUUCI WORLDWIDE LLC1
Top patents by PatentIndex Score
30 records- 0196US6889699B2Umbrella frame and operating systemTUUCI ENGINEERING & DESIGN INC·Filed 2001·Granted May 10, 2005·76 cites·10 claims
- 0295US8096310B2Umbrella assembly structured for use in high wind conditionsCLARKE DOUGAN H·Filed 2006·Granted Jan 17, 2012·52 cites·14 claims
- 0395US7293573B2Umbrella frame and operating systemTUUCI ENGINEERING & DESIGN INC·Filed 2004·Granted Nov 13, 2007·62 cites·22 claims
- 0495USD497478SUmbrella canopyTUUCI ENGINEERING & DESIGN INC·Filed 2003·Granted Oct 26, 2004·67 cites·1 claims
- 0594US7318444B2Hub assembly for an umbrella frameTUUCI ENGINEERING & DESIGN INC·Filed 2003·Granted Jan 15, 2008·66 cites·20 claims
- 0693US11363864B2Support assembly for indoor and outdoor useCLARKE DOUGAN H·Filed 2020·Granted Jun 21, 2022·5 cites·16 claims
- 0793USD478416SUmbrella canopyTUUCI ENGINEERING & DESIGN INC·Filed 2002·Granted Aug 19, 2003·56 cites·1 claims
- 0889US7600734B2Locking assembly for stanchionTUUCI ENGINEERING AND DESIGN I·Filed 2007·Granted Oct 13, 2009·26 cites·34 claims
- 0989USD475524SUmbrella canopyTUCCI ENGINEERING & DESIGN INC·Filed 2002·Granted Jun 10, 2003·34 cites·1 claims
- 1087USD470305SBase for a standing umbrellaTUCCI ENGINEERING & DESIGN INC·Filed 2001·Granted Feb 18, 2003·39 cites·1 claims
- 1186US6314976B1Umbrella frameTUCCI ENGINEERING & DESIGN INC·Filed 1999·Granted Nov 13, 2001·109 cites·22 claims
- 1281USD491720SUmbrella canopyTUUCI ENGINEERING & DESIGN INC·Filed 2003·Granted Jun 22, 2004·21 cites·1 claims
- 1381US6386214B1Umbrella operating systemFiled 1999·Granted May 14, 2002·90 cites·12 claims
- 1480US9655416B1Crank handle positioning assembly for an umbrellaCLARKE DOUGAN H·Filed 2015·Granted May 23, 2017·8 cites·25 claims
- 1578USD491348SUmbrella canopyTUUCI ENGINEERING & DESIGN INC·Filed 2003·Granted Jun 15, 2004·20 cites·1 claims
- 1676USD1083351SUmbrellaCLARKE DOUGAN H·Filed 2023·Granted Jul 15, 2025·4 cites·1 claims
- 1775USD559528SUmbrella canopyCLARKE DOUGAN H·Filed 2005·Granted Jan 15, 2008·22 cites·1 claims
- 1869USD612146SUmbrellaCLARKE DOUGAN H·Filed 2009·Granted Mar 23, 2010·16 cites·1 claims
- 1969US2025318648A1Cushion retention systemCLARKE DOUGAN H·Filed 2025·Application pending·0 cites
- 2068US2025320641A1System and method for forming woven decorative panels within framed assembliesCLARKE DOUGAN H·Filed 2025·Application pending·0 cites
- 2168US2025318642A1Height adjustable furniture legCLARKE DOUGAN H·Filed 2025·Application pending·0 cites
- 2263US2008202570A1Hub assembly for an umbrella frameCLARKE DOUGAN H·Filed 2008·Application pending·0 cites
- 2360USD1105786SFurnitureCLARKE DOUGAN H·Filed 2024·Granted Dec 16, 2025·1 cites·1 claims
- 2460US7353583B1Method of forming an umbrella canopyCLARKE DOUGAN H·Filed 2004·Granted Apr 8, 2008·8 cites·20 claims
- 2560US2024328447A1Joint systemCLARKE DOUGAN H·Filed 2024·Application pending·0 cites
- 2656US12478153B2Support assembly for indoor and outdoor useTUUCI WORLDWIDE LLC·Filed 2022·Granted Nov 25, 2025·0 cites·11 claims
- 2756US2005045217A1Height adjustable umbrella assemblyFiled 2004·Application pending·0 cites
- 2856US2024138535A1Shade canopy tensioning assemblyCLARKE DOUGAN H·Filed 2023·Application pending·0 cites
- 2955US2004206383A1Umbrella assembly structured for use in high wind conditionsFiled 2004·Application pending·0 cites
- 3041US10835003B1Indirect lighting assembly for a shade structureCLARKE DOUGAN H·Filed 2018·Granted Nov 17, 2020·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →