Inventor
CHOY SI-LAM J
US13 patents
Patents
13 patentsUS6722756B2Apr 20, 2004
Capping shroud for fluid ejection device
HEWLETT PACKARD DEVELOPMENT CO47 citations89
US11034151B2Jun 15, 2021
Nozzle arrangements
HEWLETT PACKARD DEVELOPMENT CO3 citations71
US11975468B2May 7, 2024
Coplanar modular printbars
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US10946648B2Mar 16, 2021
Fluid ejection die fluid recirculation
HEWLETT PACKARD DEVELOPMENT CO1 citations62
US11958293B2Apr 16, 2024
Nozzle arrangements
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11807005B2Nov 7, 2023
Nozzle arrangements
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11247470B2Feb 15, 2022
Nozzle arrangements and feed holes
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11807019B2Nov 7, 2023
Printing fluid circulation
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11117376B2Sep 14, 2021
Printhead assembly
HEWLETT PACKARD DEVELOPMENT CO0 citations56
US11964277B2Apr 23, 2024
Metered volume microfluidic devices
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US10815121B2Oct 27, 2020
Composite wafers
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US10640369B2May 5, 2020
Microelectromechanical system (MEMS) devices
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US12023937B2Jul 2, 2024
Recirculation bypass
HEWLETT PACKARD DEVELOPMENT CO0 citations48