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Evonik Operations GmbH

Evonik Ope
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
FR1289681A Process for making synthetic resins reinforced with glass f… Expired / Lapsed 1961-03-23 1962-04-06 0 Details
US1960177A Laminating process Expired / Lapsed 1932-03-17 1934-05-22 0 Details
US1741734A Device for tightly clamping tools in handpieces Expired / Lapsed 1928-02-09 1929-12-31 0 Details