Inventor · disambiguated record

Chu Hwan Cho

Also filed as: CHO CHU HWAN

1 granted patent·7 citations·filing 1985–1985

29Inventor score

Technology areasA24D

Files withCHO CHU HWAN1

Top patents by PatentIndex Score

1 record

0119US4636182AFilter manufacturing method for the production of pre-filters to remove harmful substances in cigarette smoke by use of pine needlesCHO CHU HWAN·Filed 1985·Granted Jan 13, 1987·7 cites·3 claims

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