Inventor
LI QINGFENG
CN29 patents
⚠️ This page may combine multiple inventors who share the name “LI QINGFENG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LI QINGFENG
11 patentsUS8434780B2May 7, 2013
Rollator
LI QINGFENG32 citations92
USD977373SFeb 7, 2023
Rollator
LI QINGFENG8 citations85
USD940601SJan 11, 2022
Rollator
LI QINGFENG12 citations85
USD891309SJul 28, 2020
Knee rest walker
LI QINGFENG7 citations84
USD690884SOct 1, 2013
Anti-vibration dipped glove
LI QINGFENG16 citations84
USD654636SFeb 21, 2012
Anti-vibration dipped glove
LI QINGFENG8 citations84
USD1073310SMay 6, 2025
Suitcase
LI QINGFENG2 citations74
USD1036875SJul 30, 2024
Shower chair
LI QINGFENG3 citations74
USD1097898SOct 14, 2025
Knee supporting walker
LI QINGFENG0 citations62
USD1057606SJan 14, 2025
Rollator
LI QINGFENG0 citations62
USD1033278SJul 2, 2024
Rollator frame
LI QINGFENG1 citations62
ALIBABA GROUP HOLDING LTD
4 patentsUS9588648B2Mar 7, 2017
Providing history-based data processing
ALIBABA GROUP HOLDING LTD5 citations73
US10748152B2Aug 18, 2020
Providing history-based data processing
ALIBABA GROUP HOLDING LTD0 citations52
US9888075B2Feb 6, 2018
Method and apparatus for data exchange based on user status
ALIBABA GROUP HOLDING LTD0 citations52
US9716752B2Jul 25, 2017
Method and apparatus for data exchange based on user status
ALIBABA GROUP HOLDING LTD0 citations52