Inventor · disambiguated record
Zhenchun Shi
Also filed as: SHI ZHENCHUN · SHI ZHENCHUN TONY
29 granted patents·280 citations·filing 2008–2022
96Inventor score
Top patents by PatentIndex Score
29 records- 0198US8113388B2Engagement flange for removable dispenser cartridgeOPHARDT HEINER·Filed 2009·Granted Feb 14, 2012·83 cites·20 claims
- 0297US8360286B2Draw back push pumpGOTOHTI COM INC·Filed 2010·Granted Jan 29, 2013·36 cites·16 claims
- 0397US8272539B2Angled slot foam dispenserOPHARDT HEINER·Filed 2008·Granted Sep 25, 2012·74 cites·20 claims
- 0495US8091739B2Engagement flange for fluid dispenser pump pistonOPHARDT HEINER·Filed 2008·Granted Jan 10, 2012·38 cites·21 claims
- 0592US8413855B2Piston with frangible piston stopOPHARDT HEINER·Filed 2010·Granted Apr 9, 2013·14 cites·20 claims
- 0688US11305306B2Dual pump hand cleaner foam dispenserOP HYGIENE IP GMBH·Filed 2020·Granted Apr 19, 2022·1 cites·20 claims
- 0786US10434532B2Three piece pumpOP HYGIENE IP GMBH·Filed 2017·Granted Oct 8, 2019·4 cites·22 claims
- 0884US10299636B2Valvular conduitOP HYGIENE IP GMBH·Filed 2017·Granted May 28, 2019·3 cites·15 claims
- 0984US10174754B2Displacement pumpOP HYGIENE IP GMBH·Filed 2015·Granted Jan 8, 2019·4 cites·19 claims
- 1084US10105018B2Two-piece foam piston pumpOP HYGIENE IP GMBH·Filed 2014·Granted Oct 23, 2018·7 cites·21 claims
- 1183US10918246B2Two-piece foam piston pumpOP HYGIENE IP GMBH·Filed 2020·Granted Feb 16, 2021·1 cites·20 claims
- 1283US10588466B2Two-piece foam piston pumpOP HYGIENE IP GMBH·Filed 2018·Granted Mar 17, 2020·3 cites·21 claims
- 1377US10267305B2Piston pump arrangement automatically disabling in absence of inlet liquidOP HYGIENE IP GMBH·Filed 2018·Granted Apr 23, 2019·1 cites·20 claims
- 1475US11974705B2Two-piece foam piston pumpOP HYGIENE IP GMBH·Filed 2022·Granted May 7, 2024·0 cites·20 claims
- 1575US9062667B2Variable volume bore piston pumpGOTOHTI COM INC·Filed 2013·Granted Jun 23, 2015·4 cites·19 claims
- 1674US11337563B2Two-piece foam piston pumpOP HYGIENE IP GMBH·Filed 2020·Granted May 24, 2022·0 cites·20 claims
- 1774US8701943B2Piston with frangible piston stopGOTOHTI COM INC·Filed 2013·Granted Apr 22, 2014·3 cites·20 claims
- 1873US10154763B2Cartridge for pump assembly carrying raspOP HYGIENE IP GMBH·Filed 2017·Granted Dec 18, 2018·1 cites·20 claims
- 1972US10238241B2Liquid hand cleaner foam dispensing as spray and liquid streamOP HYGIENE IP GMBH·Filed 2016·Granted Mar 26, 2019·1 cites·14 claims
- 2071US10617263B2Liquid hand cleaner foam dispensing as spray and liquid streamOP HYGIENE IP GMBH·Filed 2019·Granted Apr 14, 2020·1 cites·9 claims
- 2171US10150128B2Air assisted severance of fluid streamOP HYGIENE IP GMBH·Filed 2016·Granted Dec 11, 2018·1 cites·21 claims
- 2269US10888884B2Dual pump hand cleaner foam dispenserOP HYGIENE IP GMBH·Filed 2019·Granted Jan 12, 2021·0 cites·18 claims
- 2365USRE49597EValvular conduitOP HYGIENE IP GMBH·Filed 2021·Granted Aug 8, 2023·0 cites·20 claims
- 2465US10584697B2Piston pump arrangement automatically disabling in absence of inlet liquidOP HYGIENE IP GMBH·Filed 2019·Granted Mar 10, 2020·0 cites·20 claims
- 2561US10464090B2Air assisted severance of fluid streamOP HYGIENE IP GMBH·Filed 2018·Granted Nov 5, 2019·0 cites·20 claims
- 2661US10433681B2Cartridge for pump assembly carrying raspOP HYGIENE IP GMBH·Filed 2018·Granted Oct 8, 2019·0 cites·20 claims
- 2761US10421085B2Dual pump hand cleaner foam dispenserOP HYGIENE IP GMBH·Filed 2017·Granted Sep 24, 2019·0 cites·19 claims
- 2856US9826862B2Pump assembly carrying raspOP HYGIENE IP GMBH·Filed 2015·Granted Nov 28, 2017·0 cites·18 claims
- 2951US10906713B2Non-removable container enclosureOP HYGIENE IP GMBH·Filed 2019·Granted Feb 2, 2021·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →