Inventor
LUKE JEFFREY HAROLD
US15 patents
⚠️ This page may combine multiple inventors who share the name “LUKE JEFFREY HAROLD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
13 patentsUS9996031B2Jun 12, 2018
Authenticity information carrier coupled to flow stimulator in cartridge
HEWLETT PACKARD DEVELOPMENT CO2 citations71
US12099320B2Sep 24, 2024
Physical indicators of print material refill containers
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11733620B2Aug 22, 2023
Print powder reservoir sealed from atmosphere at lower pressure than atmosphere
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11577520B2Feb 14, 2023
Refill containers with pressurized fluid chambers
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US12429807B2Sep 30, 2025
Clutch actuation between positions
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US12393133B2Aug 19, 2025
Cartridge with selectively disruptable toner transfer for image forming device
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US12313986B2May 27, 2025
Toner transfer modulators
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US12313984B2May 27, 2025
Disruptions of toner transfers from developers to photoreceptors
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11614697B1Mar 28, 2023
Modules with inner module spaces for print materials
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11366423B2Jun 21, 2022
Drive adapter
HEWLETT PACKARD DEVELOPMENT CO1 citations58
US11340845B1May 24, 2022
Determination of predicted failure modes based on properties of dust in printing devices
HEWLETT PACKARD DEVELOPMENT CO0 citations54
US11402768B2Aug 2, 2022
Print material agitators coupled to tabs
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US9188904B2Nov 17, 2015
Toner supply regulation
HEWLETT PACKARD DEVELOPMENT CO0 citations50