Inventor
FITZGERALD SEAN DANIEL
US24 patents
⚠️ This page may combine multiple inventors who share the name “FITZGERALD SEAN DANIEL”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD DEVELOPMENT CO
23 patentsUS11067920B2Jul 20, 2021
Asymmetric key features
HEWLETT PACKARD DEVELOPMENT CO3 citations72
US11055038B2Jul 6, 2021
Print substance end-of-life predictions
HEWLETT PACKARD DEVELOPMENT CO4 citations70
US11970005B2Apr 30, 2024
Rotatable dispensing nozzles
HEWLETT PACKARD DEVELOPMENT CO0 citations62
US11858696B2Jan 2, 2024
Dispensing nozzles
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11801681B2Oct 31, 2023
Severable dispensable substance containers
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11577520B2Feb 14, 2023
Refill containers with pressurized fluid chambers
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11385575B2Jul 12, 2022
Fuser rollers
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11174058B2Nov 16, 2021
Seal removal structure
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11163245B2Nov 2, 2021
Embedded memory resources
HEWLETT PACKARD DEVELOPMENT CO0 citations61
US11866245B2Jan 9, 2024
Dispensable substance containers
HEWLETT PACKARD DEVELOPMENT CO0 citations60
US11526123B2Dec 13, 2022
Particulate delivery container
HEWLETT PACKARD DEVELOPMENT CO0 citations60
US11327694B2May 10, 2022
Print substance end-of-life predictions
HEWLETT PACKARD DEVELOPMENT CO0 citations60
US11285728B2Mar 29, 2022
Colorant sensors
HEWLETT PACKARD DEVELOPMENT CO0 citations60
US11865845B2Jan 9, 2024
Print material refill device
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11731430B2Aug 22, 2023
Device to supply printing material
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11718098B2Aug 8, 2023
Device to supply printing material
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11491797B2Nov 8, 2022
Print materials replenishment
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11402765B2Aug 2, 2022
Print material container
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11163244B2Nov 2, 2021
Print material transfer mechanisms
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11334000B2May 17, 2022
Electromagnets and print substance containers
HEWLETT PACKARD DEVELOPMENT CO0 citations56
US12403434B2Sep 2, 2025
Print material container
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US11592780B2Feb 28, 2023
Combination cartridge
HEWLETT PACKARD DEVELOPMENT CO0 citations51
US11305547B2Apr 19, 2022
Electrical contacts coupled to guide structures
HEWLETT PACKARD DEVELOPMENT CO0 citations51