Inventor · disambiguated record
Woong-Yong Choi
Also filed as: CHOI WOONG YONG
22 granted patents·68 citations·filing 2009–2019
92Inventor score
Files withHEWLETT PACKARD DEVELOPMENT CO8S PRINTING SOLUTION CO LTD5SAMSUNG ELECTRONICS CO LTD4CHOI WOONG-YONG3HEWLETT PACKARD DEVELOPMENT CO LP1
Top patents by PatentIndex Score
22 records- 0188US10139750B2Developing cartridge, developing apparatus and image forming apparatus having the sameS PRINTING SOLUTION CO LTD·Filed 2017·Granted Nov 27, 2018·3 cites·20 claims
- 0278US11126113B2Structure for releasing internal pressure in development cartridge when refilling tonerHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Sep 21, 2021·1 cites·15 claims
- 0372USD833520SCartridgeS PRINTING SOLUTION CO LTD·Filed 2017·Granted Nov 13, 2018·14 cites·1 claims
- 0470USD833519SCartridgeS PRINTING SOLUTION CO LTD·Filed 2017·Granted Nov 13, 2018·13 cites·1 claims
- 0570US8977162B2Developing device and image forming apparatus including the sameSAMSUNG ELECTRONICS CO LTD·Filed 2012·Granted Mar 10, 2015·1 cites·18 claims
- 0666US10558144B2Developing cartridge, developing apparatus and image forming apparatus having the sameS PRINTING SOLUTION CO LTD·Filed 2018·Granted Feb 11, 2020·0 cites·19 claims
- 0765USD832340SCartridgeS PRINTING SOLUTION CO LTD·Filed 2017·Granted Oct 30, 2018·10 cites·1 claims
- 0864US11209750B2Toner refill cartridge with holder holding memory unit thereon and rotatable with respect to cartridge bodyHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Dec 28, 2021·0 cites·15 claims
- 0962US8831474B2Developing device and image forming apparatus including the sameJOO JONG-HWA·Filed 2011·Granted Sep 9, 2014·2 cites·12 claims
- 1062USD706339SDeveloping device for a printerCHOI WOONG-YONG·Filed 2012·Granted Jun 3, 2014·13 cites·1 claims
- 1160US11571854B2Print particle replenishment deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Feb 7, 2023·0 cites·22 claims
- 1260US11281125B2Toner refill cartridge with structure for preventing toner discharging part from being blocked by weight partHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Mar 22, 2022·0 cites·20 claims
- 1358USD705349SDeveloping apparatus for printerCHOI WOONG-YONG·Filed 2012·Granted May 20, 2014·11 cites·1 claims
- 1456US11112728B2Structure for selectively locking toner inlet shutter of toner refill portion based on rotational phase of toner refill cartridgeHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Sep 7, 2021·0 cites·15 claims
- 1555US9465357B2Cartridge and electrophotographic image forming apparatus using the sameSAMSUNG ELECTRONICS CO LTD·Filed 2014·Granted Oct 11, 2016·0 cites·61 claims
- 1654US11112727B2Interface structure for toner refill cartridge and toner refill portionHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Sep 7, 2021·0 cites·15 claims
- 1753US11036164B2Toner cartridge for refilling toner by using elastic forceHEWLETT PACKARD DEVELOPMENT CO·Filed 2018·Granted Jun 15, 2021·0 cites·15 claims
- 1848US9651894B2Developer cartridge and electrophotographic image forming apparatus including the sameSAMSUNG ELECTRONICS CO LTD·Filed 2016·Granted May 16, 2017·0 cites·20 claims
- 1946US9658571B2Developing device and image forming apparatus including the sameSAMSUNG ELECTRONICS CO LTD·Filed 2015·Granted May 23, 2017·0 cites·18 claims
- 2041US8126370B2Developing unit and image forming apparatus having the sameCHOI WOONG YONG·Filed 2009·Granted Feb 28, 2012·0 cites·28 claims
- 2129USD893598SToner reload kitHEWLETT PACKARD DEVELOPMENT CO LP·Filed 2019·Granted Aug 18, 2020·0 cites·1 claims
- 2228USD907698SDevelopment cartridge for a printerHEWLETT PACKARD DEVELOPMENT CO·Filed 2019·Granted Jan 12, 2021·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →