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Cooper Industries LLC

Cooper Ind
Active Patents
0
Total Holdings
16

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4651156A Integrated radio location and communication system Expired / Lapsed 1985-02-28 1987-03-17 27 Details
US4257659A Electrical connector with safety cover means Expired / Lapsed 1979-09-28 1981-03-24 8 Details
US4071920A Sweeper Expired / Lapsed 1976-02-04 1978-02-07 25 Details
US3937976A Disguised coil for security system for automotive vehicles … Expired / Lapsed 1974-09-20 1976-02-10 7 Details
US3816644A Low noise cord with non-metallic shield Expired / Lapsed 1973-03-30 1974-06-11 11 Details
US3726307A Pressure control apparatus Expired / Lapsed 1971-12-09 1973-04-10 14 Details
US3723967A Induction-keyed door-lock and power control circuit for aut… Expired / Lapsed 1971-03-24 1973-03-27 80 Details
US3598188A Kelly speed bushing Expired / Lapsed 1969-05-22 1971-08-10 31 Details
US3419071A Underwater wellhead apparatus Expired / Lapsed 1967-06-21 1968-12-31 0 Details
US3272947A Switch contact arrangement Expired / Lapsed 1964-05-11 1966-09-13 1 Details
US2912214A Blowout preventer Expired / Lapsed 1954-03-01 1959-11-10 0 Details
US2433942A Flow device Expired / Lapsed 1943-10-11 1948-01-06 0 Details
US2350867A Sealing and testing well head connections Expired / Lapsed 1939-05-09 1944-06-06 0 Details
US2336977A System for setting wells to control tubing pressure Expired / Lapsed 1940-10-14 1943-12-14 0 Details
US2246600A Pressure seal for flange connection Expired / Lapsed 1939-08-21 1941-06-24 0 Details
US2188141A Tool joint control for blowout preventers Expired / Lapsed 1938-06-10 1940-01-23 0 Details