Inventor
LI ZHENGZHONG
CN42 patents
⚠️ This page may combine multiple inventors who share the name “LI ZHENGZHONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LI ZHENGZHONG
30 patentsUSD1006227SNov 28, 2023
Ear cleaner
LI ZHENGZHONG17 citations94
USD1037451SJul 30, 2024
Ear cleaner
LI ZHENGZHONG5 citations85
USD1033912SJul 9, 2024
Electric cleaning brush
LI ZHENGZHONG11 citations85
USD1028365SMay 21, 2024
Nail polisher
LI ZHENGZHONG10 citations85
USD1025350SApr 30, 2024
Oral irrigator
LI ZHENGZHONG10 citations85
USD1010824SJan 9, 2024
Ear cleaning device
LI ZHENGZHONG9 citations85
USD1006228SNov 28, 2023
Ear cleaner
LI ZHENGZHONG14 citations85
USD994120SAug 1, 2023
Ear cleaning device
LI ZHENGZHONG12 citations85
USD1069117SApr 1, 2025
Ear cleaner
LI ZHENGZHONG2 citations74
USD1061889SFeb 11, 2025
Ear cleaner
LI ZHENGZHONG1 citations74
USD1040412SAug 27, 2024
Projection lamp
LI ZHENGZHONG4 citations74
USD1027177SMay 14, 2024
Ear spoon sleeve
LI ZHENGZHONG3 citations74
USD1046140SOct 8, 2024
Ear cleaner
LI ZHENGZHONG2 citations73
USD1026224SMay 7, 2024
Ear cleaner
LI ZHENGZHONG2 citations73
US11920763B1Mar 5, 2024
Projection lamp
LI ZHENGZHONG2 citations72
USD1088223SAug 12, 2025
Electric irrigator
LI ZHENGZHONG1 citations64
USD1061888SFeb 11, 2025
Ear cleaner
LI ZHENGZHONG1 citations64
USD1102736SNov 25, 2025
Ear cleaner storage device
LI ZHENGZHONG0 citations62
USD1079941SJun 17, 2025
Otoscope
LI ZHENGZHONG0 citations62
USD1070081SApr 8, 2025
Otoscope
LI ZHENGZHONG0 citations62
USD1065514SMar 4, 2025
Spatula
LI ZHENGZHONG0 citations62
USD1050435SNov 5, 2024
Ear spoon
LI ZHENGZHONG0 citations62
USD1037450SJul 30, 2024
Ear spoon
LI ZHENGZHONG1 citations62
USD1037453SJul 30, 2024
Ear spoon
LI ZHENGZHONG1 citations62
USD1037452SJul 30, 2024
Ear spoon
LI ZHENGZHONG1 citations62
USD1025363SApr 30, 2024
Ear spoon
LI ZHENGZHONG0 citations62
USD1025362SApr 30, 2024
Ear spoon
LI ZHENGZHONG0 citations62
USD1024331SApr 23, 2024
Ear spoon
LI ZHENGZHONG1 citations62
US12413845B1Sep 9, 2025
Inspection device with display screen
LI ZHENGZHONG0 citations51
US12256904B1Mar 25, 2025
Inspection device with display screen
LI ZHENGZHONG0 citations51
LI MING
4 patentsUS9593579B2Mar 14, 2017
Crank circular sliding block mechanism and reciprocating member, cylinder block, internal combustion engine, and compressor
LI MING3 citations66
US8931442B2Jan 13, 2015
V-type block of a crank circular slider mechanism and a cylinder liner, a group of the cylinder liner, mechanical equipment thereof
LI MING2 citations51
US10012224B2Jul 3, 2018
Crank circular sliding block mechanism, parts thereof, and equipment therefrom
LI MING0 citations42
US9163658B2Oct 20, 2015
Parts for crankshaft of internal combustion engine or compressor, crankshaft, internal combustion engine and compressor
LI MING0 citations42