国家/地区 世界知识产权组织（4）
IPC部 B（4）
IPC大类 B01（4） C02（2）
IPC小类 B01D（4）
IPC B01D069/02（4）
发明人
公开年 2022（4）
申请年 2021（3） 
专利权人

Porous polymeric membrane useful for removing impurities from liquid compositions e.g. alcohols and ammonium hydroxide comprises a polymer having mixed in it a carbonaceous material.

MIR A A, JABER J A, PATEL R B, BOUDREAU A, KALYANI V

Separation membrane has support having water permeability, matrix layer supported by support and having holes, and graphene layer including graphene material supported by matrix layer and including graphene and/or graphene oxide, and having another holes overlapping holes.

HIROTAKA S, YASUHIKO T, MOTOYUKI H, MASASHI M, SAKUMA H, TADA Y, HIROOKA M, MARUYAMA M

Polypropylene membrane used in device for filtration, osmosis, concentration and/or dialysis, is coated with organomethoxysilane alone or in combination with oxide particles.

PRUNERI V, PEREZ CORONADO A M, ROMBAUT SEGARRA J, CORZO GARCIA B

Mop cleaning bucket for rinsing and de-drying clean water by circulating and filtering sewage, has water column for drawing water from water purification area to clean mop cloth to form sewage that flows to water outlet through inclined surface.

WU C