Inventor · disambiguated record
Sungchul Ahn
Also filed as: AHN SUNG-CHOL · AHN SUNGCHUL
7 granted patents·1 pending application·11 citations·filing 1996–2023
76Inventor score
Top patents by PatentIndex Score
8 records- 0191US11209762B2Method for error handling in the toner refill processHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Dec 28, 2021·6 cites·20 claims
- 0287US11294301B2Detecting toner injection amount of toner refill cartridgeHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Apr 5, 2022·3 cites·15 claims
- 0379US12181805B2Method for error handling in the toner refill processHEWLETT PACKARD DEVELOPMENT CO·Filed 2023·Granted Dec 31, 2024·0 cites·16 claims
- 0471US11892781B2Method for error handling in the toner refill processHEWLETT PACKARD DEVELOPMENT CO·Filed 2021·Granted Feb 6, 2024·0 cites·15 claims
- 0555US11294303B2Toner refill cartridge with pulverization member activated by elastic forceHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Apr 5, 2022·0 cites·15 claims
- 0637US2023333500A1Toner refill cartridge with foldable plungerHEWLETT PACKARD DEVELOPMENT CO·Filed 2020·Application pending·0 cites
- 0728USD907698SDevelopment cartridge for a printerHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Jan 12, 2021·0 cites·1 claims
- 0826US5839153AWindshield wiper system for vehiclesHYUNDAI MOTOR CO LTD·Filed 1996·Granted Nov 24, 1998·2 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →