Inventor · disambiguated record
Si-Lam Choy
Also filed as: CHOY SI-LAM · CHOY SI-LAM J · CHOY SI-LAM JULIUS
31 granted patents·11 pending applications·136 citations·filing 2001–2025
94Inventor score
Top patents by PatentIndex Score
42 records- 0196US7658470B1Method of using a flexible circuitHEWLETT PACKARD DEVELOPMENT CO·Filed 2005·Granted Feb 9, 2010·72 cites·62 claims
- 0292US11034151B2Nozzle arrangementsHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Jun 15, 2021·3 cites·20 claims
- 0389US6722756B2Capping shroud for fluid ejection deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Apr 20, 2004·47 cites·29 claims
- 0488US11292265B2Fluid circulation and ejectionHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Apr 5, 2022·2 cites·11 claims
- 0586US11065883B2Cross-die recirculation channels and chamber recirculation channelsHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Jul 20, 2021·2 cites·20 claims
- 0685US10850530B2Printhead liquid delivery and gas removalHEWLETT PACKARD DEVELOPMENT CO·Filed 2015·Granted Dec 1, 2020·2 cites·15 claims
- 0784US11807005B2Nozzle arrangementsHEWLETT PACKARD DEVELOPMENT CO·Filed 2023·Granted Nov 7, 2023·0 cites·20 claims
- 0879US11390075B2Fluidic diesHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Jul 19, 2022·1 cites·20 claims
- 0978US10946648B2Fluid ejection die fluid recirculationHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Mar 16, 2021·1 cites·13 claims
- 1077US11958293B2Nozzle arrangementsHEWLETT PACKARD DEVELOPMENT CO·Filed 2021·Granted Apr 16, 2024·0 cites·20 claims
- 1177US11691431B2Fluid circulation and ejectionHEWLETT PACKARD DEVELOPMENT CO·Filed 2022·Granted Jul 4, 2023·0 cites·8 claims
- 1274US11987055B2Fluidic diesHEWLETT PACKARD DEVELOPMENT CO·Filed 2022·Granted May 21, 2024·0 cites·18 claims
- 1370US2022314215A1Vertically layered fluid columnsHEWLETT PACKARD DEVELOPMENT CO·Filed 2020·Application pending·0 cites
- 1467US11964277B2Metered volume microfluidic devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2022·Granted Apr 23, 2024·0 cites·15 claims
- 1567US2022297115A1Fluid preparation devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2020·Application pending·0 cites
- 1666US11117376B2Printhead assemblyHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Sep 14, 2021·0 cites·5 claims
- 1765US11925932B2Microfluidic devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Mar 12, 2024·0 cites·18 claims
- 1865US11059291B2Fluidic ejection dies with enclosed cross-channelsHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Jul 13, 2021·0 cites·15 claims
- 1964US11975468B2Coplanar modular printbarsHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted May 7, 2024·0 cites·15 claims
- 2064US2024042441A1Sample preparation cartridge moduleHP HEALTH SOLUTIONS INC·Filed 2020·Application pending·0 cites
- 2163US12233415B2Microfluidic reaction chamber for amplification of nucleic acidsHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Feb 25, 2025·0 cites·6 claims
- 2263US11807019B2Printing fluid circulationHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Nov 7, 2023·0 cites·16 claims
- 2361US11325385B2Fluidic diesHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted May 10, 2022·0 cites·19 claims
- 2459US11155094B2Rotatable service assembly for fluid ejection dieHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Oct 26, 2021·0 cites·15 claims
- 2557US11331923B2Fluidic cartridgesHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted May 17, 2022·0 cites·19 claims
- 2657US2025135458A1Microfluidic reaction chamber for amplification of nucleic acidsHEWLETT PACKARD DEVELOPMENT CO·Filed 2025·Application pending·0 cites
- 2755US2022250061A1Multi-fluid density gradient columnsHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Application pending·0 cites
- 2854US12023937B2Recirculation bypassHEWLETT PACKARD DEVELOPMENT CO·Filed 2020·Granted Jul 2, 2024·0 cites·16 claims
- 2953US11207894B2Bubblers to provide sequential fluid flowHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Dec 28, 2021·0 cites·15 claims
- 3053US2023103446A1Microfluidic nanopore sensing devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2020·Application pending·0 cites
- 3152US11441977B2Biological fluid dilution devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Sep 13, 2022·0 cites·15 claims
- 3252US11247470B2Nozzle arrangements and feed holesHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Feb 15, 2022·0 cites·20 claims
- 3348US11597646B2Microfluidic device with manifoldHEWLETT PACKARD DEVELOPMENT CO·Filed 2016·Granted Mar 7, 2023·0 cites·20 claims
- 3448US6626518B2Bending a tab flex circuit via cantilevered leadsHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Sep 30, 2003·5 cites·17 claims
- 3547US10640369B2Microelectromechanical system (MEMS) devicesHEWLETT PACKARD DEVELOPMENT CO·Filed 2016·Granted May 5, 2020·0 cites·20 claims
- 3645US10815121B2Composite wafersHEWLETT PACKARD DEVELOPMENT CO·Filed 2016·Granted Oct 27, 2020·0 cites·13 claims
- 3744US2021114032A1Fluidic diesHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Application pending·0 cites
- 3844US2022250389A1Substrates and lids with overflow channelsHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Application pending·0 cites
- 3942US2022251539A1Concentrating biological componentsHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Application pending·0 cites
- 4041US6779869B2Printhead nozzle alignment in a printing systemHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Aug 24, 2004·1 cites·16 claims
- 4140US2021129536A1Slidable service assembliesHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Application pending·0 cites
- 4240US2021187957A1Fluid ejection assembliesHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →