国家/地区 中国（3） 世界知识产权组织（2）
IPC部 B（4） C（4）
IPC大类 B01（4）
IPC小类 B01D（4） C01B（4）
IPC B01D046/00（4）
发明人
公开年 2021（2） 2022（2）
申请年 2021（4）
专利权人

Antibacterial and antiviral filtering device crossed by contaminated air used in separation processes comprises column structure of contiguous filter modules delimited by lateral surface at inlet and lateral surface at outlet.

BUSSO G

Multi-pass scanning device for laser-induced graphene, comprises foil material conveying device comprising unreeling machine, guide roller, winder, feedback sensor, and controller, and laser scanning device including scanning focusing head.

YANG Y, SUN B, CHEN Y, ZHOU S

Face mask e.g. surgical face mask, comprises mask component to cover wearer's mouth and nose, and fastener engaging with mask component comprising air-permeable outer layer, inner layer located on inner side of mask component, and graphene layer, where fastener connects mask component to wearer.

ZHAMU A, JANG B Z, ZHANG B

Graphene cleaning device comprises machine body comprising moving device, upper cover, fan, and stirring device, where ring of the upper end device is in threaded connection with the inner ring of the moving device.

SHI X