国家/地区 印度（4）
IPC部 B（4）
IPC大类 B01（4） C08（2） D01（2）
IPC小类 B01D（4）
IPC B01D067/00（2）
发明人
公开年 2021（4）
申请年 2020（3） 
专利权人

Multi-layered mask is useful for e.g. protecting against the aerosol transmission of COVID-19 comprises five layers characterized that first and last layers are made of e.g. cotton textile layers, natural fiber layers, and nanofibers layer.

SHIREESHA G, KARBARI S R, UTTARA K M, SUBRAMANYA K

Preparing graphene based on mixed inorganic acid solvent by e.g. pre-treating raw material graphite powder, preparing mixed inorganic acid solvent, performing graphene peeling treatment, and extracting graphene product from graphene mixture.

QIAN X, MA C

Polymeric nanofibrous membrane used for detecting quality of pre-filter cartridge in filtering device for trapping analyte such as manganese, iron, copper, zinc, calcium, chromium, lead, rhodamine, gram-negative bacteria and gram-positive bacteria, comprises polymer, and functionalized nanofiller.

TIWARI S, VESH A, ROY D, MUKHOPADHYAY K, PRASAD N E

New super-wetting surface as polypropylene surface with micro-nano structure grafted with hydrophilic side groups.

QIAO J, WANG S, ZHANG X, QI G, SONG Z, CAI C, WANG X, LAI J, LI B, JIANG H, RU Y, ZHANG J, GAO J, ZHANG H, HAN P, JIANG C, GUO Z, GUICUN Q, ZHIHAI S, BINGHAI L, JIANMING G, ZHAOYAN G, SOONGHEO W, LIU Y, JIANG X