Inventor
ZHENG ZHAOZHANG
CN13 patents
⚠️ This page may combine multiple inventors who share the name “ZHENG ZHAOZHANG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HANGZHOU HANGKE OPTOELECTRONICS CO LTD
11 patentsUSD943786SFeb 15, 2022
Light bulb
HANGZHOU HANGKE OPTOELECTRONICS CO LTD5 citations70
US11662065B1May 30, 2023
Manufacturing method of LED filament and manufacturing method of bulb
HANGZHOU HANGKE OPTOELECTRONICS CO LTD2 citations69
US11619357B1Apr 4, 2023
LED filament and bulb
HANGZHOU HANGKE OPTOELECTRONICS CO LTD2 citations69
USD1121208SMar 31, 2026
Chandelier with branches
HANGZHOU HANGKE OPTOELECTRONICS CO LTD0 citations61
US12326247B2Jun 10, 2025
Light tubes, light fixtures, and light bodies
HANGZHOU HANGKE OPTOELECTRONICS CO LTD0 citations61
USD1036712SJul 23, 2024
Light
HANGZHOU HANGKE OPTOELECTRONICS CO LTD0 citations59
US11898727B2Feb 13, 2024
Line lamp
HANGZHOU HANGKE OPTOELECTRONICS CO LTD1 citations59
US11614221B2Mar 28, 2023
Lamp
HANGZHOU HANGKE OPTOELECTRONICS CO LTD0 citations59
US11393966B2Jul 19, 2022
Omnidirectional LED light wire and packaging method thereof, light source and lamp
HANGZHOU HANGKE OPTOELECTRONICS CO LTD1 citations59
USD943787SFeb 15, 2022
Light bulb
HANGZHOU HANGKE OPTOELECTRONICS CO LTD0 citations59
USD943788SFeb 15, 2022
Light bulb
HANGZHOU HANGKE OPTOELECTRONICS CO LTD0 citations59