Inventor · disambiguated record
Doo Won Han
Also filed as: HAN DOO WON
5 granted patents·10 pending applications·37 citations·filing 2005–2023
73Inventor score
Top patents by PatentIndex Score
15 records- 0187US8506807B2Spiral wound type filter cartridgeLEE SUN-YONG·Filed 2008·Granted Aug 13, 2013·31 cites·33 claims
- 0272US9266043B2Filter cartridgeHAN DOO-WON·Filed 2011·Granted Feb 23, 2016·4 cites·5 claims
- 0360US2024132386A1Water purifierCOWAY CO LTD·Filed 2023·Application pending·0 cites
- 0457US2024286943A1Water purifier having composite filterCOWAY CO LTD·Filed 2022·Application pending·0 cites
- 0557US2024367109A1Water purifier having composite filterCOWAY CO LTD·Filed 2022·Application pending·0 cites
- 0656US7766173B2Polyamide reverse osmosis composite membrane and preparation method thereofWOONGJINCOWAY CO LTD·Filed 2005·Granted Aug 3, 2010·2 cites·9 claims
- 0756US2024278181A1Water purifierCOWAY CO LTD·Filed 2022·Application pending·0 cites
- 0856US2024278154A1Water purifierCOWAY CO LTD·Filed 2022·Application pending·0 cites
- 0954US2025002373A1Filter assemblyCOWAY CO LTD·Filed 2022·Application pending·0 cites
- 1053US2025050279A1Filter member and filter structure including sameCOWAY CO LTD·Filed 2022·Application pending·0 cites
- 1153US2013299410A1Spiral wound type filter cartridgeCOWAY CO LTD·Filed 2013·Application pending·0 cites
- 1252US2025025811A1Composite filter and water purifier having sameCOWAY CO LTD·Filed 2022·Application pending·0 cites
- 1349US9725347B2Water treatment apparatusCOWAY CO LTD·Filed 2013·Granted Aug 8, 2017·0 cites·12 claims
- 1446US2024067535A1Water purifierCOWAY CO LTD·Filed 2021·Application pending·0 cites
- 1543US11266953B2Reverse osmosis filtering module and reverse osmosis filter comprising sameCOWAY CO LTD·Filed 2018·Granted Mar 8, 2022·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →