国家/地区 世界知识产权组织（2）
IPC部 A（2）
IPC大类 A41（2）
IPC小类 A41D（2）
IPC
发明人
公开年 2022（2）
申请年
专利权人

Face mask for use as personal protective equipment, comprises layer comprising surface-functionalized graphene particles having specified sulfur impurity level, manganese level, and/or nitrogen oxide level.

PROMNIMIT A

System for obtaining a compound for blocking cosmic, nuclear and electromagnetic radiation for preparing fibers, comprises hydrogen reservoir, hydrocarbon reservoir and vacuum chamber.

DUVOISIN C A, CAVALCANTI S C, SCHERER P J, GARBE E A, DUVOISIN C V, DUVOISIN C P