国家/地区 印度（2）
IPC部 B（2）
IPC大类 B01（2） C02（2）
IPC小类 B01D（2）
IPC C02F001/00（2）
发明人
公开年
申请年 2021（2）
专利权人

Portable drinking water container with water filtration system comprises screw cap of container at top with removable water filter fitting to as cartridge and squeezable cylindrical water storage unit of suitable material.

MANDAL A, GHOSH S, GUPTA A

Four-columns water filter system has three filtering bed in each column, where three filtering bed comprises filter I or first filter bed-made-up of functionalized graphene, filter II or second filter bed-made-up of cotton supported bed.

GAUTAM S, KUMAR A, VASHISTHA V K, DAS D K, SHARMA K, PRAKASH S