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Sumitomo Chemical Co Ltd

Sumitomo C
Active Patents
0
Total Holdings
6

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
JPH07124192A Heating element Expired / Lapsed 1993-11-01 — 0 Details
GB1389491A Process for producing rubber-modified plastics material Expired / Lapsed 1972-04-12 — 0 Details
US5804513A Abrasive composition and use of the same Expired / Lapsed 1997-08-29 1998-09-08 16 Details
US4265959A Process for producing semipermeable membranes Expired / Lapsed 1978-12-27 1981-05-05 17 Details
US4146936A Implants for bones, joints and tooth roots Expired / Lapsed 1976-12-29 1979-04-03 22 Details
US3446208A Porous polyolefin gauze Expired / Lapsed 1966-06-27 1969-05-27 0 Details