Inventor
HUANG HAIYAN
CN17 patents
⚠️ This page may combine multiple inventors who share the name “HUANG HAIYAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DONGGUAN CASEKEY IND CO LTD
8 patentsUS11399608B2Aug 2, 2022
Card clamp
DONGGUAN CASEKEY IND CO LTD23 citations89
USD1021402SApr 9, 2024
Card holder
DONGGUAN CASEKEY IND CO LTD8 citations83
USD903313SDec 1, 2020
Card case
DONGGUAN CASEKEY IND CO LTD14 citations81
USD1096148SOct 7, 2025
Card holder for wallet holders
DONGGUAN CASEKEY IND CO LTD1 citations62
USD1099525SOct 28, 2025
Card holder
DONGGUAN CASEKEY IND CO LTD0 citations60
USD1097576SOct 14, 2025
Card holder
DONGGUAN CASEKEY IND CO LTD0 citations60
USD1085725SJul 29, 2025
Clip of card holder
DONGGUAN CASEKEY IND CO LTD0 citations60
USD1072475SApr 29, 2025
Badge holder
DONGGUAN CASEKEY IND CO LTD0 citations60
ZHEJIANG INNUOVO NEW ENERGY TECH CO LTD
4 patentsUS10453628B2Oct 22, 2019
Opposite arc isolation device of high voltage direct current relay
ZHEJIANG INNUOVO NEW ENERGY TECH CO LTD1 citations56
US10312043B2Jun 4, 2019
Sealed high voltage direct current relay
ZHEJIANG INNUOVO NEW ENERGY TECH CO LTD1 citations55
US10262825B2Apr 16, 2019
Moving iron core guide mechanism for high voltage direct current relay
ZHEJIANG INNUOVO NEW ENERGY TECH CO LTD1 citations55
US10163596B2Dec 25, 2018
Horizontal-deflection prevention mechanism for high voltage direct current relay
ZHEJIANG INNUOVO NEW ENERGY TECH CO LTD0 citations45