Alcoa Corp
Alcoa CorpActive Patents
0
Total Holdings
82
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| GB898069A | Method of relieving residual stresses in light metal articl… | Expired / Lapsed | 1959-12-15 | — | 0 | Details |
| US4704886A | Stretch-forming process | Expired / Lapsed | 1985-04-22 | 1987-11-10 | 7 | Details |
| US4091954A | Aluminum container having interior surface treated to suppr… | Expired / Lapsed | 1977-06-02 | 1978-05-30 | 7 | Details |
| US3977141A | Metal shake or shingle panel and accessories | Expired / Lapsed | 1974-10-23 | 1976-08-31 | 8 | Details |
| US3729971A | Method of hot compacting titanium powder | Expired / Lapsed | 1971-03-24 | 1973-05-01 | 14 | Details |
| US3703795A | Building siding units | Expired / Lapsed | 1971-05-28 | 1972-11-28 | 8 | Details |
| US3697045A | Adjustable winch for cargo tie-down | Expired / Lapsed | 1971-05-11 | 1972-10-10 | 7 | Details |
| US3524046A | Apparatus and method for piercing holes in elastomeric arti… | Expired / Lapsed | 1968-04-26 | 1970-08-11 | 0 | Details |
| US3349837A | Continuous casting apparatus with means supporting only out… | Expired / Lapsed | 1965-07-19 | 1967-10-31 | 2 | Details |
| US3278149A | Shelving assembly | Expired / Lapsed | 1965-02-19 | 1966-10-11 | 2 | Details |
| US3244542A | Water-dispersible metallic flake pigments and ready-mixed c… | Expired / Lapsed | 1962-11-26 | 1966-04-05 | 4 | Details |
| US3083452A | Fusion-pressure joining of aluminum members | Expired / Lapsed | 1961-05-10 | 1963-04-02 | 2 | Details |
| US3057271A | Cast structural gratings | Expired / Lapsed | 1957-12-13 | 1962-10-09 | 0 | Details |
| US3039864A | Treatment of molten light metals | Expired / Lapsed | 1958-11-21 | 1962-06-19 | 2 | Details |
| US3019373A | Differential direct current responsive control system | Expired / Lapsed | 1959-01-02 | 1962-01-30 | 0 | Details |
| US2999671A | Handrail connection | Expired / Lapsed | 1959-03-17 | 1961-09-12 | 0 | Details |
| US2995224A | Screen type structures | Expired / Lapsed | 1959-08-14 | 1961-08-08 | 0 | Details |
| US2976170A | Method for improving coating receptivity of an aluminum sur… | Expired / Lapsed | 1959-07-14 | 1961-03-21 | 2 | Details |
| US2966736A | Aluminum base alloy powder product | Expired / Lapsed | 1958-03-27 | 1961-01-03 | 2 | Details |
| US2961528A | Electric welding apparatus | Expired / Lapsed | 1958-12-24 | 1960-11-22 | 0 | Details |
| US2908073A | Method of bonding aluminous metal to dissimilar metal | Expired / Lapsed | 1957-06-07 | 1959-10-13 | 2 | Details |
| US2662034A | Method of impregnating an oxide coating on aluminum and res… | Expired / Lapsed | 1950-07-14 | 1953-12-08 | 2 | Details |
| US2659252A | Fabrication of light metals | Expired / Lapsed | 1952-05-09 | 1953-11-17 | 2 | Details |
| US2613141A | Chemical brightening of aluminum | Expired / Lapsed | 1949-07-29 | 1952-10-07 | 2 | Details |
| CA480412A | Method of casting | Expired / Lapsed | — | 1952-01-22 | 0 | Details |
| US2555865A | Impulse frequency metering system | Expired / Lapsed | 1945-12-12 | 1951-06-05 | 0 | Details |
| US2549549A | Process for producing aluminum trihydrate | Expired / Lapsed | 1947-06-07 | 1951-04-17 | 2 | Details |
| US2544467A | Tension control system | Expired / Lapsed | 1947-01-31 | 1951-03-06 | 0 | Details |
| US2530669A | Extrusion apparatus | Expired / Lapsed | 1944-11-30 | 1950-11-21 | 0 | Details |
| US2510770A | Induction heating control mechanism | Expired / Lapsed | 1946-12-11 | 1950-06-06 | 0 | Details |
| US2429525A | Billet feeder | Expired / Lapsed | 1943-12-17 | 1947-10-21 | 0 | Details |
| US2426988A | Mold coating | Expired / Lapsed | 1942-11-13 | 1947-09-09 | 0 | Details |
| US2405074A | Method and machine for assembling articles | Expired / Lapsed | 1943-04-12 | 1946-07-30 | 0 | Details |
| US2390293A | Work handling unit | Expired / Lapsed | 1942-12-19 | 1945-12-04 | 0 | Details |
| US2389443A | Coil handling apparatus | Expired / Lapsed | 1943-02-06 | 1945-11-20 | 0 | Details |
| US2387955A | Tamperproof closure | Expired / Lapsed | 1942-01-08 | 1945-10-30 | 0 | Details |
| US2380202A | Method of thermal treatment | Expired / Lapsed | 1942-08-31 | 1945-07-10 | 0 | Details |
| US2378155A | Treatment of adsorbent alumina | Expired / Lapsed | 1943-03-24 | 1945-06-12 | 0 | Details |
| US2369354A | Aluminum base alloy | Expired / Lapsed | 1942-06-06 | 1945-02-13 | 0 | Details |
| US2367317A | Closure | Expired / Lapsed | 1942-07-04 | 1945-01-16 | 0 | Details |
| US2357683A | Multiple punch press | Expired / Lapsed | 1942-08-17 | 1944-09-05 | 0 | Details |
| US2345765A | Tension controlling apparatus | Expired / Lapsed | 1942-04-13 | 1944-04-04 | 0 | Details |
| US2322700A | Structure | Expired / Lapsed | 1940-05-18 | 1943-06-22 | 0 | Details |
| US2301027A | Method of casting | Expired / Lapsed | 1938-07-02 | 1942-11-03 | 0 | Details |
| US2249349A | Method of hot working an aluminum base alloy and product th… | Expired / Lapsed | 1939-08-23 | 1941-07-15 | 0 | Details |
| US2243833A | Transientless timer | Expired / Lapsed | 1939-04-15 | 1941-06-03 | 0 | Details |
| US2243832A | Welding apparatus and method | Expired / Lapsed | 1938-06-16 | 1941-06-03 | 0 | Details |
| US2230611A | Cable protector | Expired / Lapsed | 1938-06-06 | 1941-02-04 | 0 | Details |
| US2225292A | Work-handling mechanism | Expired / Lapsed | 1939-08-03 | 1940-12-17 | 0 | Details |
| US2222941A | Work handling device | Expired / Lapsed | 1939-10-04 | 1940-11-26 | 0 | Details |
| US2196077A | Method of producing sodium aluminum fluoride | Expired / Lapsed | 1937-06-25 | 1940-04-02 | 0 | Details |
| US2184705A | Refining and producing aluminum | Expired / Lapsed | 1939-09-18 | 1939-12-26 | 0 | Details |
| US2157155A | Treating aluminum surfaces | Expired / Lapsed | 1936-07-03 | 1939-05-09 | 0 | Details |
| US2156987A | Wrapper for foodstuffs | Expired / Lapsed | 1932-09-29 | 1939-05-02 | 0 | Details |
| US2151508A | Bottle capsule | Expired / Lapsed | 1936-03-03 | 1939-03-21 | 0 | Details |
| US2140610A | Method of making a shelf structure for refrigerators | Expired / Lapsed | 1935-11-07 | 1938-12-20 | 0 | Details |
| US2135766A | Method of producing metal grilles | Expired / Lapsed | 1935-02-07 | 1938-11-08 | 0 | Details |
| US2135193A | Extrusion | Expired / Lapsed | 1935-04-12 | 1938-11-01 | 0 | Details |
| US2107318A | White coating on aluminum | Expired / Lapsed | 1934-08-15 | 1938-02-08 | 0 | Details |
| US2096428A | Closure and receptacle | Expired / Lapsed | 1935-03-23 | 1937-10-19 | 0 | Details |
| US2092033A | Heat treatment of aluminous metals | Expired / Lapsed | 1936-10-01 | 1937-09-07 | 0 | Details |
| US2047237A | Extrusion | Expired / Lapsed | 1935-04-12 | 1936-07-14 | 0 | Details |
| US2026540A | Free cutting alloys | Expired / Lapsed | 1933-09-18 | 1936-01-07 | 0 | Details |
| US2024767A | Piston and method of making the same | Expired / Lapsed | 1932-06-22 | 1935-12-17 | 0 | Details |
| US2008733A | Treatment of coatings | Expired / Lapsed | 1932-05-26 | 1935-07-23 | 0 | Details |
| US1985205A | Production of anhydrous and absolute alcohols | Expired / Lapsed | 1932-05-28 | 1934-12-18 | 0 | Details |
| US1978112A | Nonseizing article of aluminum and method of producing the … | Expired / Lapsed | 1932-02-01 | 1934-10-23 | 0 | Details |
| US1977619A | Automatic gauge control system for rolling mills | Expired / Lapsed | 1931-04-15 | 1934-10-23 | 0 | Details |
| US1974970A | Alloy | Expired / Lapsed | 1933-08-17 | 1934-09-25 | 0 | Details |
| US1973317A | Container | Expired / Lapsed | 1932-10-14 | 1934-09-11 | 0 | Details |
| US1964795A | Refrigerating unit | Expired / Lapsed | 1931-01-16 | 1934-07-03 | 0 | Details |
| US1955745A | Receptacle | Expired / Lapsed | 1932-02-19 | 1934-04-24 | 0 | Details |
| US1955468A | Electric conductor cable | Expired / Lapsed | 1930-02-26 | 1934-04-17 | 0 | Details |
| US1953201A | Aluminum hydrate of low water content and process of produc… | Expired / Lapsed | 1926-09-03 | 1934-04-03 | 0 | Details |
| US1937885A | Method of manufacturing fluoride materials | Expired / Lapsed | 1931-01-29 | 1933-12-05 | 0 | Details |
| US1923790A | Chromium plated article and method of making the same | Expired / Lapsed | 1928-11-24 | 1933-08-22 | 0 | Details |
| US1921021A | Method of connecting alpha collapsible cellophane tube to a… | Expired / Lapsed | 1931-06-03 | 1933-08-08 | 0 | Details |
| US1871723A | Process for the recovery of cryolite | Expired / Lapsed | 1929-05-29 | 1932-08-16 | 0 | Details |
| US1776615A | Joint and method of making the same | Expired / Lapsed | 1928-12-12 | 1930-09-23 | 0 | Details |
| US1716943A | Aluminum-beryllium alloy and method of treatment | Expired / Lapsed | 1926-11-22 | 1929-06-11 | 0 | Details |
| US1663150A | Aluminum-base alloy | Expired / Lapsed | 1925-06-30 | 1928-03-20 | 0 | Details |
| US1661448A | Nonseizing article of aluminum and method of producing the … | Expired / Lapsed | 1923-04-24 | 1928-03-06 | 0 | Details |