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Browse, filter, and analyze 90 patents across global jurisdictions.

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Patent Number Title Assignee Status Filing Date Grant Date Expires Remaining Claims Actions
US4784769A Plasma polymerized acetonitrile protective coatings and method of preparation therefor for ultrafiltration/microfiltration membranes Standard Oil Co Expired / Lapsed 1986-11-21 1988-11-15 2006-11-21 0.0 yrs 10
US4405547A Method of coextruding diverse materials Standard Oil Co Expired / Lapsed 1982-04-19 1983-09-20 2002-04-19 0.0 yrs 9
US4281981A Die assembly providing uniform pressure and flow Standard Oil Co Expired / Lapsed 1980-02-25 1981-08-04 2000-02-25 0.0 yrs 6
US4042153A Liquid dropping device Standard Oil Co Expired / Lapsed 1975-11-17 1977-08-16 1995-11-17 0.0 yrs 4
US3908759A Sidetracking tool Standard Oil Co Expired / Lapsed 1974-05-22 1975-09-30 1994-05-22 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
US3048336A Electronic integrator Standard Oil Co Expired / Lapsed 1958-09-23 1962-08-07 1978-09-23 0.0 yrs 0
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
Showing 1 to 20 of 90 patents
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