Inventor
JEONG BYEONGNO
KR6 patents
Patents
6 patentsUS11209762B2Dec 28, 2021
Method for error handling in the toner refill process
HEWLETT PACKARD DEVELOPMENT CO6 citations81
US11294301B2Apr 5, 2022
Detecting toner injection amount of toner refill cartridge
HEWLETT PACKARD DEVELOPMENT CO3 citations70
USD907698SJan 12, 2021
Development cartridge for a printer
HEWLETT PACKARD DEVELOPMENT CO0 citations60
US12181805B2Dec 31, 2024
Method for error handling in the toner refill process
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US11892781B2Feb 6, 2024
Method for error handling in the toner refill process
HEWLETT PACKARD DEVELOPMENT CO0 citations59
US12271119B2Apr 8, 2025
Structure to pop up toner refill cartridge from mounting portion
HEWLETT PACKARD DEVELOPMENT CO0 citations47