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Evonik Operations GmbH

Evonik Ope
Active Patents
0
Total Holdings
17

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
FR2162472A1 Multiple electric cable - with sheaf of ends spaced apart b… Expired / Lapsed 1972-12-06 — 0 Details
DE1188895B Process for the production of a composite material of titan… Expired / Lapsed 1962-08-23 — 0 Details
US5674072A Two-phase tooth implant Expired / Lapsed 1995-10-17 1997-10-07 14 Details
US3928238A Exhaust gas purifying catalyst and process of making and us… Expired / Lapsed 1973-10-12 1975-12-23 27 Details
US3669906A Catalyst for purification of exhaust gases from motor vehic… Expired / Lapsed 1970-08-19 1972-06-13 18 Details
US3276929A Method of forming a sleeved joint over shaped polyolefin bo… Expired / Lapsed 1961-08-21 1966-10-04 2 Details
FR1289681A Process for making synthetic resins reinforced with glass f… Expired / Lapsed 1961-03-23 1962-04-06 0 Details
US2829118A Process for forming shaped bodies from polyethylene Expired / Lapsed 1953-09-23 1958-04-01 2 Details
US2795541A Electrolytic production of percompounds Expired / Lapsed 1952-12-22 1957-06-11 2 Details
DE904490C Metallic moldings Expired / Lapsed 1952-03-02 1954-02-18 0 Details
DE828843C Facility for the cultivation of plants in beds made of grai… Expired / Lapsed 1948-10-02 1952-01-21 0 Details
US2261264A Manufacture of laminated products Expired / Lapsed 1939-05-02 1941-11-04 0 Details
US2241312A Manufacture of laminated fibrous articles Expired / Lapsed 1939-01-14 1941-05-06 0 Details
US2033662A Holder for dental instruments Expired / Lapsed 1934-04-20 1936-03-10 0 Details
US1960177A Laminating process Expired / Lapsed 1932-03-17 1934-05-22 0 Details
DE549080C Dental contra-angle Expired / Lapsed 1930-02-08 1932-04-22 0 Details
US1741734A Device for tightly clamping tools in handpieces Expired / Lapsed 1928-02-09 1929-12-31 0 Details