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Browse, filter, and analyze 81 patents across global jurisdictions.

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Patent Number Title Assignee Status Filing Date Grant Date Expires Remaining Claims Actions
US4405547A Method of coextruding diverse materials Standard Oil Co Expired / Lapsed 1982-04-19 1983-09-20 2002-04-19 0.0 yrs 9
US4042153A Liquid dropping device Standard Oil Co Expired / Lapsed 1975-11-17 1977-08-16 1995-11-17 0.0 yrs 4
US3580414A Fueling device for automobiles and the like Standard Oil Co Expired / Lapsed 1968-12-20 1971-05-25 1988-12-20 0.0 yrs 13
US3360401A Process for converting chemical energy into electrical energy Standard Oil Co Expired / Lapsed 1965-09-29 1967-12-26 1985-09-29 0.0 yrs 2
US3135591A Separation of helium from a gaseous mixture by means of a novel selective diffusion barrier Standard Oil Co Expired / Lapsed 1960-09-08 1964-06-02 1980-09-08 0.0 yrs 1
US3076417A Positive displacement pump Standard Oil Co Expired / Lapsed 1959-10-29 1963-02-05 1979-10-29 0.0 yrs 2
US3029642A Transistor thermistor telemetering device Standard Oil Co Expired / Lapsed 1954-12-22 1962-04-17 1974-12-22 0.0 yrs 0
US2993366A Conductometric corrosion test probe with replaceable test specimen components Standard Oil Co Expired / Lapsed 1959-07-02 1961-07-25 1979-07-02 0.0 yrs 0
US2984623A Permeation process using irradiated polyethylene membrane Standard Oil Co Expired / Lapsed 1956-10-22 1961-05-16 1976-10-22 0.0 yrs 2
US2861895A Paving composition of low thermal conductivity Standard Oil Co Expired / Lapsed 1955-12-30 1958-11-25 1975-12-30 0.0 yrs 2
US2840551A Olefin polymerization with catalysts prepared from boron compounds and transition metal compounds Standard Oil Co Expired / Lapsed 1955-08-18 1958-06-24 1975-08-18 0.0 yrs 2
US2805574A Wide range flow meter Standard Oil Co Expired / Lapsed 1952-09-22 1957-09-10 1972-09-22 0.0 yrs 0
US2797201A Process of producing hollow particles and resulting product Standard Oil Co Expired / Lapsed 1953-10-02 1957-06-25 1973-10-02 0.0 yrs 2
US2790833A Method of preparing aryl polysulfides Standard Oil Co Expired / Lapsed 1954-09-13 1957-04-30 1974-09-13 0.0 yrs 2
US2768306A Slit-control equipment Standard Oil Co Expired / Lapsed 1952-11-26 1956-10-23 1972-11-26 0.0 yrs 0
US2729970A Carbonization testing apparatus Standard Oil Co Expired / Lapsed 1952-10-28 1956-01-10 1972-10-28 0.0 yrs 0
US2728753A Improved product separation in ethylene polymerization process Standard Oil Co Expired / Lapsed 1952-05-16 1955-12-27 1972-05-16 0.0 yrs 2
US2727023A Ethylene polymerization Standard Oil Co Expired / Lapsed 1951-12-01 1955-12-13 1971-12-01 0.0 yrs 1
US2726231A Preparation of solid polymers from ethylene and the like in the presence of alkali metal hydrides and group 6a metal oxide catalysts Standard Oil Co Expired / Lapsed 1952-12-06 1955-12-06 1972-12-06 0.0 yrs 2
US2712885A Selective fluid metering system Standard Oil Co Expired / Lapsed 1949-05-10 1955-07-12 1969-05-10 0.0 yrs 0
Showing 1 to 20 of 81 patents
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