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Sumitomo Riko Co Ltd

Sumitomo R

Active Patents

0

Total Holdings

5

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
EP0381198A1	Apparatus using a fluid whose viscosity varies with electri…	Expired / Lapsed	1990-01-31	—	13	Details
US6446673B1	Fuel hose of low fuel permeability	Expired / Lapsed	2002-01-09	2002-09-10	21	Details
US4907625A	Refregerant transporting hose	Expired / Lapsed	1988-12-21	1990-03-13	11	Details
US4887647A	Hose	Expired / Lapsed	1988-06-15	1989-12-19	6	Details
US4611832A	Hose joint	Expired / Lapsed	1984-03-19	1986-09-16	8	Details