国家/地区 印度（3）
IPC部 A（3）
IPC大类 B01（3）
IPC小类 B01D（3）
IPC C02F001/00（3）
发明人
公开年 2021（3）
申请年
专利权人

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

Lid for container, has flexible adapter that is configured to be connected to tap for receiving raw water and passing raw water into water purification unit by using water pressure in water supply line.

SHAH R

System for cleaning water body, has water filtering unit which is operatively coupled to rubbish storing unit, and which is configured to purify extracted water by removing solid wastes and impurities from extracted water.

RANI S, SHARMA D, CHOUDHARY S, SHIVANI, SHARMA S, ANAND V, JINDAL H