国家/地区 中国（3）
IPC部 C（2）
IPC大类
IPC小类
IPC
发明人 ZHANG G（3）
公开年 2021（3）
申请年 2021（3） 
专利权人 ZHANG G（3）

Method for preparing graphene raw material in biological medicine and drug delivery applications, involves selecting and sieving graphene raw material, polishing graphene raw material through grinding device, and sieving grinded raw material powder.

ZHANG G

Solar photovoltaic power generation using device, has water collecting main control unit arranged on side of water outlet pipe away from storage water tank, and outer row pipe head installed on outer row of water collecting main control unit away from water outlet pipe.

ZHANG G

Antibacterial polyurethane soundproof earplug prepared by taking polyethylene glycol and polycastor oil adipate polyol, mixing polyether polyol, catalyst, foam stabilizer and chain extender, adding diphenylmethane diisocyanate and curing.

ZHANG G